151980061531 has 4 divisors (see below), whose sum is σ = 151995375064. Its totient is φ = 151964748000.

The previous prime is 151980061501. The next prime is 151980061553. The reversal of 151980061531 is 135160089151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151980061531 - 2³³ = 143390126939 is a prime.

It is a super-2 number, since 2×151980061531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151980061501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7641870 + ... + 7661731.

It is an arithmetic number, because the mean of its divisors is an integer number (37998843766).

Almost surely, 2^151980061531 is an apocalyptic number.

151980061531 is a deficient number, since it is larger than the sum of its proper divisors (15313533).

151980061531 is an equidigital number, since it uses as much as digits as its factorization.

151980061531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15313532.

The product of its (nonzero) digits is 32400, while the sum is 40.

The spelling of 151980061531 in words is "one hundred fifty-one billion, nine hundred eighty million, sixty-one thousand, five hundred thirty-one".