136972553 has 8 divisors (see below), whose sum is σ = 145992960. Its totient is φ = 128059200.

The previous prime is 136972547. The next prime is 136972559. The reversal of 136972553 is 355279631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (136972547) and next prime (136972559).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136972553 - 2⁶ = 136972489 is a prime.

It is a super-2 number, since 2×136972553² = 37522960550675618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136972553.

It is not an unprimeable number, because it can be changed into a prime (136972559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24113 + ... + 29246.

It is an arithmetic number, because the mean of its divisors is an integer number (18249120).

Almost surely, 2^136972553 is an apocalyptic number.

It is an amenable number.

136972553 is a deficient number, since it is larger than the sum of its proper divisors (9020407).

136972553 is a wasteful number, since it uses less digits than its factorization.

136972553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53527.

The product of its digits is 170100, while the sum is 41.

The square root of 136972553 is about 11703.5273742577. The cubic root of 136972553 is about 515.4792447184.

The spelling of 136972553 in words is "one hundred thirty-six million, nine hundred seventy-two thousand, five hundred fifty-three".