91254071 has 4 divisors (see below), whose sum is σ = 91283472. Its totient is φ = 91224672.

The previous prime is 91254047. The next prime is 91254073. The reversal of 91254071 is 17045219.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91254071 - 2²⁶ = 24145207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91254073) 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, 9410 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (22820868).

Almost surely, 2^91254071 is an apocalyptic number.

91254071 is a deficient number, since it is larger than the sum of its proper divisors (29401).

91254071 is a wasteful number, since it uses less digits than its factorization.

91254071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29400.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 91254071 is about 9552.6996707737. The cubic root of 91254071 is about 450.2123623184.

The spelling of 91254071 in words is "ninety-one million, two hundred fifty-four thousand, seventy-one".