136851531 has 8 divisors (see below), whose sum is σ = 182523024. Its totient is φ = 91207200.

The previous prime is 136851529. The next prime is 136851553. The reversal of 136851531 is 135158631.

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

It is not a de Polignac number, because 136851531 - 2¹ = 136851529 is a prime.

It is a super-2 number, since 2×136851531² = 37456683074087922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136851492 and 136851501.

It is not an unprimeable number, because it can be changed into a prime (136851511) 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, 14565 + ... + 22041.

It is an arithmetic number, because the mean of its divisors is an integer number (22815378).

Almost surely, 2^136851531 is an apocalyptic number.

136851531 is a deficient number, since it is larger than the sum of its proper divisors (45671493).

136851531 is an equidigital number, since it uses as much as digits as its factorization.

136851531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13581.

The product of its digits is 10800, while the sum is 33.

The square root of 136851531 is about 11698.3559101269. The cubic root of 136851531 is about 515.3273828793.

The spelling of 136851531 in words is "one hundred thirty-six million, eight hundred fifty-one thousand, five hundred thirty-one".