91148656 has 10 divisors (see below), whose sum is σ = 176600552. Its totient is φ = 45574320.

The previous prime is 91148647. The next prime is 91148657. The reversal of 91148656 is 65684119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91148657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2848380 + ... + 2848411.

Almost surely, 2^91148656 is an apocalyptic number.

It is an amenable number.

91148656 is a deficient number, since it is larger than the sum of its proper divisors (85451896).

91148656 is a wasteful number, since it uses less digits than its factorization.

91148656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696799 (or 5696793 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 91148656 is about 9547.1805262077. The cubic root of 91148656 is about 450.0389365486.

The spelling of 91148656 in words is "ninety-one million, one hundred forty-eight thousand, six hundred fifty-six".