91954151 has 2 divisors, whose sum is σ = 91954152. Its totient is φ = 91954150.

The previous prime is 91954141. The next prime is 91954169. The reversal of 91954151 is 15145919.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91954151 is a prime.

It is a super-2 number, since 2×91954151² = 16911131772261602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91954111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45977075 + 45977076.

It is an arithmetic number, because the mean of its divisors is an integer number (45977076).

Almost surely, 2^91954151 is an apocalyptic number.

91954151 is a deficient number, since it is larger than the sum of its proper divisors (1).

91954151 is an equidigital number, since it uses as much as digits as its factorization.

91954151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 35.

The square root of 91954151 is about 9589.2727044338. The cubic root of 91954151 is about 451.3607387768.

The spelling of 91954151 in words is "ninety-one million, nine hundred fifty-four thousand, one hundred fifty-one".