91590242 has 8 divisors (see below), whose sum is σ = 137427456. Its totient is φ = 45781092.

The previous prime is 91590211. The next prime is 91590259. The reversal of 91590242 is 24209519.

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

It is a super-3 number, since 3×91590242³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91590199 and 91590208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5903 + ... + 14765.

It is an arithmetic number, because the mean of its divisors is an integer number (17178432).

Almost surely, 2^91590242 is an apocalyptic number.

91590242 is a deficient number, since it is larger than the sum of its proper divisors (45837214).

91590242 is a wasteful number, since it uses less digits than its factorization.

91590242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14032.

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

The square root of 91590242 is about 9570.2790972886. The cubic root of 91590242 is about 450.7645308118.

The spelling of 91590242 in words is "ninety-one million, five hundred ninety thousand, two hundred forty-two".