91163742 has 16 divisors (see below), whose sum is σ = 182839680. Its totient is φ = 30302552.

The previous prime is 91163687. The next prime is 91163771. The reversal of 91163742 is 24736119.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19008 + ... + 23315.

It is an arithmetic number, because the mean of its divisors is an integer number (11427480).

Almost surely, 2^91163742 is an apocalyptic number.

91163742 is an abundant number, since it is smaller than the sum of its proper divisors (91675938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91163742 is a wasteful number, since it uses less digits than its factorization.

91163742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42687.

The product of its digits is 9072, while the sum is 33.

The square root of 91163742 is about 9547.9705697075. The cubic root of 91163742 is about 450.0637638039.

The spelling of 91163742 in words is "ninety-one million, one hundred sixty-three thousand, seven hundred forty-two".