131872835 has 8 divisors (see below), whose sum is σ = 161614656. Its totient is φ = 103253440.

The previous prime is 131872801. The next prime is 131872843. The reversal of 131872835 is 538278131.

It is a happy number.

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

It is not a de Polignac number, because 131872835 - 2⁸ = 131872579 is a prime.

It is a super-2 number, since 2×131872835² = 34780889221874450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280346 + ... + 280815.

It is an arithmetic number, because the mean of its divisors is an integer number (20201832).

Almost surely, 2^131872835 is an apocalyptic number.

131872835 is a deficient number, since it is larger than the sum of its proper divisors (29741821).

131872835 is an equidigital number, since it uses as much as digits as its factorization.

131872835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561213.

The product of its digits is 40320, while the sum is 38.

The square root of 131872835 is about 11483.5898132944. The cubic root of 131872835 is about 509.0007796777. Note that the first 3 decimals are identical.

The spelling of 131872835 in words is "one hundred thirty-one million, eight hundred seventy-two thousand, eight hundred thirty-five".