131000770 has 16 divisors (see below), whose sum is σ = 237525048. Its totient is φ = 52017280.

The previous prime is 131000767. The next prime is 131000773. The reversal of 131000770 is 77000131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131000767) and next prime (131000773).

It can be written as a sum of positive squares in 4 ways, for example, as 111999889 + 19000881 = 10583^2 + 4359^2 .

It is a super-2 number, since 2×131000770² = 34322403481185800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131000773) 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, 46441 + ... + 49180.

Almost surely, 2^131000770 is an apocalyptic number.

131000770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131000770 is a deficient number, since it is larger than the sum of its proper divisors (106524278).

131000770 is a wasteful number, since it uses less digits than its factorization.

131000770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95765.

The product of its (nonzero) digits is 147, while the sum is 19.

The square root of 131000770 is about 11445.5567798163. The cubic root of 131000770 is about 507.8763028851.

The spelling of 131000770 in words is "one hundred thirty-one million, seven hundred seventy", and thus it is an aban number.