131749372 has 6 divisors (see below), whose sum is σ = 230561408. Its totient is φ = 65874684.

The previous prime is 131749351. The next prime is 131749381. The reversal of 131749372 is 273947131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16468668 + ... + 16468675.

Almost surely, 2^131749372 is an apocalyptic number.

It is an amenable number.

131749372 is a deficient number, since it is larger than the sum of its proper divisors (98812036).

131749372 is a wasteful number, since it uses less digits than its factorization.

131749372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32937347 (or 32937345 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 131749372 is about 11478.2129271067. The cubic root of 131749372 is about 508.8418832045.

It can be divided in two parts, 13 and 1749372, that added together give a triangular number (1749385 = T₁₈₇₀).

The spelling of 131749372 in words is "one hundred thirty-one million, seven hundred forty-nine thousand, three hundred seventy-two".