136870965 has 216 divisors, whose sum is σ = 331138080. Its totient is φ = 53887680.

The previous prime is 136870939. The next prime is 136870991. The reversal of 136870965 is 569078631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (136870939) and next prime (136870991).

It is not a de Polignac number, because 136870965 - 2⁷ = 136870837 is a prime.

It is a super-2 number, since 2×136870965² = 37467322120062450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 136870965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 7203726 + ... + 7203744.

Almost surely, 2^136870965 is an apocalyptic number.

136870965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136870965 is an abundant number, since it is smaller than the sum of its proper divisors (194267115).

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

136870965 is a wasteful number, since it uses less digits than its factorization.

136870965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 136870965 is about 11699.1865101810. The cubic root of 136870965 is about 515.3517752464.

The spelling of 136870965 in words is "one hundred thirty-six million, eight hundred seventy thousand, nine hundred sixty-five".