91012654 has 16 divisors (see below), whose sum is σ = 139531392. Its totient is φ = 44513208.

The previous prime is 91012651. The next prime is 91012657. The reversal of 91012654 is 45621019.

It is an interprime number because it is at equal distance from previous prime (91012651) and next prime (91012657).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91012651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14437 + ... + 19759.

It is an arithmetic number, because the mean of its divisors is an integer number (8720712).

Almost surely, 2^91012654 is an apocalyptic number.

91012654 is a deficient number, since it is larger than the sum of its proper divisors (48518738).

91012654 is a wasteful number, since it uses less digits than its factorization.

91012654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 91012654 is about 9540.0552409302. The cubic root of 91012654 is about 449.8149922613.

The spelling of 91012654 in words is "ninety-one million, twelve thousand, six hundred fifty-four".