131085435 has 32 divisors (see below), whose sum is σ = 226437120. Its totient is φ = 64372608.

The previous prime is 131085431. The next prime is 131085439. The reversal of 131085435 is 534580131.

It is an interprime number because it is at equal distance from previous prime (131085431) and next prime (131085439).

It is not a de Polignac number, because 131085435 - 2² = 131085431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131085431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125646 + ... + 126684.

It is an arithmetic number, because the mean of its divisors is an integer number (7076160).

Almost surely, 2^131085435 is an apocalyptic number.

131085435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131085435 is a deficient number, since it is larger than the sum of its proper divisors (95351685).

131085435 is a wasteful number, since it uses less digits than its factorization.

131085435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 131085435 is about 11449.2547792422. The cubic root of 131085435 is about 507.9856917767.

The spelling of 131085435 in words is "one hundred thirty-one million, eighty-five thousand, four hundred thirty-five".