151232661 has 12 divisors (see below), whose sum is σ = 218563488. Its totient is φ = 100768104.

The previous prime is 151232639. The next prime is 151232671. The reversal of 151232661 is 166232151.

It is a de Polignac number, because none of the positive numbers 2^k-151232661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151232671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21016 + ... + 27278.

It is an arithmetic number, because the mean of its divisors is an integer number (18213624).

Almost surely, 2^151232661 is an apocalyptic number.

It is an amenable number.

151232661 is a deficient number, since it is larger than the sum of its proper divisors (67330827).

151232661 is a wasteful number, since it uses less digits than its factorization.

151232661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8952 (or 8949 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 151232661 is about 12297.6689254509. The cubic root of 151232661 is about 532.7807578508.

The spelling of 151232661 in words is "one hundred fifty-one million, two hundred thirty-two thousand, six hundred sixty-one".