131769045 has 32 divisors (see below), whose sum is σ = 235152000. Its totient is φ = 70008192.

The previous prime is 131769031. The next prime is 131769061. The reversal of 131769045 is 540967131.

It is not a de Polignac number, because 131769045 - 2¹² = 131764949 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36481 + ... + 39929.

It is an arithmetic number, because the mean of its divisors is an integer number (7348500).

Almost surely, 2^131769045 is an apocalyptic number.

131769045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131769045 is a deficient number, since it is larger than the sum of its proper divisors (103382955).

131769045 is a wasteful number, since it uses less digits than its factorization.

131769045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746 (or 3740 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 131769045 is about 11479.0698665005. The cubic root of 131769045 is about 508.8672089373.

The spelling of 131769045 in words is "one hundred thirty-one million, seven hundred sixty-nine thousand, forty-five".