11913000 has 192 divisors, whose sum is σ = 42793920. Its totient is φ = 2736000.

The previous prime is 11912993. The next prime is 11913007. The reversal of 11913000 is 31911.

11913000 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11912993) and next prime (11913007).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 626991 + ... + 627009.

It is an arithmetic number, because the mean of its divisors is an integer number (222885).

Almost surely, 2^11913000 is an apocalyptic number.

11913000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11913000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21396960).

11913000 is an abundant number, since it is smaller than the sum of its proper divisors (30880920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11913000 is a wasteful number, since it uses less digits than its factorization.

11913000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 11913000 is about 3451.5214036711. The cubic root of 11913000 is about 228.3882274586.

Adding to 11913000 its reverse (31911), we get a palindrome (11944911).

The spelling of 11913000 in words is "eleven million, nine hundred thirteen thousand".