91400954 has 8 divisors (see below), whose sum is σ = 138315060. Its totient is φ = 45295936.

The previous prime is 91400951. The next prime is 91400957. The reversal of 91400954 is 45900419.

It is an interprime number because it is at equal distance from previous prime (91400951) and next prime (91400957).

It can be written as a sum of positive squares in 2 ways, for example, as 85285225 + 6115729 = 9235^2 + 2473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×91400954² = 16708268784220232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91400954.

It is not an unprimeable number, because it can be changed into a prime (91400951) 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, 201989 + ... + 202440.

Almost surely, 2^91400954 is an apocalyptic number.

91400954 is a deficient number, since it is larger than the sum of its proper divisors (46914106).

91400954 is a wasteful number, since it uses less digits than its factorization.

91400954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404544.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 91400954 is about 9560.3846156941. The cubic root of 91400954 is about 450.4537875068.

The spelling of 91400954 in words is "ninety-one million, four hundred thousand, nine hundred fifty-four".