135897140970 has 24 divisors (see below), whose sum is σ = 353332566756. Its totient is φ = 36239237568.

The previous prime is 135897140927. The next prime is 135897140987. The reversal of 135897140970 is 79041798531.

It is a happy number.

135897140970 is a `hidden beast` number, since 13 + 589 + 7 + 1 + 40 + 9 + 7 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 133059341529 + 2837799441 = 364773^2 + 53271^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 754984027 + ... + 754984206.

Almost surely, 2^135897140970 is an apocalyptic number.

135897140970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135897140970 is an abundant number, since it is smaller than the sum of its proper divisors (217435425786).

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

135897140970 is a wasteful number, since it uses less digits than its factorization.

135897140970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509968246 (or 1509968243 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 135897140970 in words is "one hundred thirty-five billion, eight hundred ninety-seven million, one hundred forty thousand, nine hundred seventy".