131436906072 has 32 divisors (see below), whose sum is σ = 334792122480. Its totient is φ = 42985654400.

The previous prime is 131436906067. The next prime is 131436906109. The reversal of 131436906072 is 270609634131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51664179 + ... + 51666722.

Almost surely, 2^131436906072 is an apocalyptic number.

131436906072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131436906072 is an abundant number, since it is smaller than the sum of its proper divisors (203355216408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131436906072 is a wasteful number, since it uses less digits than its factorization.

131436906072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103330963 (or 103330959 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 131436906072 in words is "one hundred thirty-one billion, four hundred thirty-six million, nine hundred six thousand, seventy-two".