61119900 has 72 divisors (see below), whose sum is σ = 196497840. Its totient is φ = 16297920.

The previous prime is 61119887. The next prime is 61119911. The reversal of 61119900 is 991116.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8619 + ... + 14018.

Almost surely, 2^61119900 is an apocalyptic number.

61119900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61119900 is an abundant number, since it is smaller than the sum of its proper divisors (135377940).

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

61119900 is a wasteful number, since it uses less digits than its factorization.

61119900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22660 (or 22647 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 61119900 is about 7817.9217187178. The cubic root of 61119900 is about 393.9074653640.

The spelling of 61119900 in words is "sixty-one million, one hundred nineteen thousand, nine hundred".