1341121536 has 440 divisors, whose sum is σ = 4517810880. Its totient is φ = 394149888.

The previous prime is 1341121511. The next prime is 1341121543. The reversal of 1341121536 is 6351211431.

It is a happy number.

1341121536 is a `hidden beast` number, since 1 + 3 + 4 + 1 + 121 + 536 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36246510 + ... + 36246546.

It is an arithmetic number, because the mean of its divisors is an integer number (10267752).

Almost surely, 2^1341121536 is an apocalyptic number.

1341121536 is a gapful number since it is divisible by the number (16) 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 1341121536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258905440).

1341121536 is an abundant number, since it is smaller than the sum of its proper divisors (3176689344).

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

1341121536 is a wasteful number, since it uses less digits than its factorization.

1341121536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 84 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1341121536 is about 36621.3262457820. The cubic root of 1341121536 is about 1102.7812637940.

Adding to 1341121536 its reverse (6351211431), we get a palindrome (7692332967).

The spelling of 1341121536 in words is "one billion, three hundred forty-one million, one hundred twenty-one thousand, five hundred thirty-six".