91801461 has 4 divisors (see below), whose sum is σ = 122401952. Its totient is φ = 61200972.

The previous prime is 91801439. The next prime is 91801519. The reversal of 91801461 is 16410819.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 91801461 - 2⁵ = 91801429 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 (91801421) 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, 15300241 + ... + 15300246.

It is an arithmetic number, because the mean of its divisors is an integer number (30600488).

Almost surely, 2^91801461 is an apocalyptic number.

It is an amenable number.

91801461 is a deficient number, since it is larger than the sum of its proper divisors (30600491).

91801461 is a wasteful number, since it uses less digits than its factorization.

91801461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30600490.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 91801461 is about 9581.3078961069. The cubic root of 91801461 is about 451.1107719837.

The spelling of 91801461 in words is "ninety-one million, eight hundred one thousand, four hundred sixty-one".