131000769 has 12 divisors (see below), whose sum is σ = 189680400. Its totient is φ = 87122904.

The previous prime is 131000767. The next prime is 131000773. The reversal of 131000769 is 967000131.

It is not a de Polignac number, because 131000769 - 2¹ = 131000767 is a prime.

It is a super-2 number, since 2×131000769² = 34322402957182722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131000767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13599 + ... + 21140.

It is an arithmetic number, because the mean of its divisors is an integer number (15806700).

Almost surely, 2^131000769 is an apocalyptic number.

It is an amenable number.

131000769 is a deficient number, since it is larger than the sum of its proper divisors (58679631).

131000769 is a wasteful number, since it uses less digits than its factorization.

131000769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35164 (or 35161 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 131000769 is about 11445.5567361313. The cubic root of 131000769 is about 507.8763015928.

It can be divided in two parts, 131000 and 769, that added together give a square (131769 = 363²).

The spelling of 131000769 in words is "one hundred thirty-one million, seven hundred sixty-nine", and thus it is an aban number.