232761981 has 16 divisors (see below), whose sum is σ = 321159168. Its totient is φ = 149794800.

The previous prime is 232761937. The next prime is 232761983. The reversal of 232761981 is 189167232.

It is not a de Polignac number, because 232761981 - 2⁷ = 232761853 is a prime.

It is a super-2 number, since 2×232761981² = 108356279598088722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232761983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37180 + ... + 42986.

It is an arithmetic number, because the mean of its divisors is an integer number (20072448).

Almost surely, 2^232761981 is an apocalyptic number.

It is an amenable number.

232761981 is a deficient number, since it is larger than the sum of its proper divisors (88397187).

232761981 is a wasteful number, since it uses less digits than its factorization.

232761981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272.

The product of its digits is 36288, while the sum is 39.

The square root of 232761981 is about 15256.5389587547. The cubic root of 232761981 is about 615.1353446586.

The spelling of 232761981 in words is "two hundred thirty-two million, seven hundred sixty-one thousand, nine hundred eighty-one".