136845031 has 8 divisors (see below), whose sum is σ = 138441600. Its totient is φ = 135254880.

The previous prime is 136845017. The next prime is 136845041. The reversal of 136845031 is 130548631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136845031 is a prime.

It is a super-2 number, since 2×136845031² = 37453125018781922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136844984 and 136845002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136845041) 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, 50901 + ... + 53521.

It is an arithmetic number, because the mean of its divisors is an integer number (17305200).

Almost surely, 2^136845031 is an apocalyptic number.

136845031 is a deficient number, since it is larger than the sum of its proper divisors (1596569).

136845031 is a wasteful number, since it uses less digits than its factorization.

136845031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 136845031 is about 11698.0780900112. The cubic root of 136845031 is about 515.3192239619.

The spelling of 136845031 in words is "one hundred thirty-six million, eight hundred forty-five thousand, thirty-one".