49131090 has 32 divisors (see below), whose sum is σ = 131016960. Its totient is φ = 13101552.

The previous prime is 49131073. The next prime is 49131101. The reversal of 49131090 is 9013194.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90714 + ... + 91253.

It is an arithmetic number, because the mean of its divisors is an integer number (4094280).

Almost surely, 2^49131090 is an apocalyptic number.

49131090 is an abundant number, since it is smaller than the sum of its proper divisors (81885870).

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

49131090 is a wasteful number, since it uses less digits than its factorization.

49131090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181983 (or 181977 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 49131090 is about 7009.3573171868. The cubic root of 49131090 is about 366.2566058596.

The spelling of 49131090 in words is "forty-nine million, one hundred thirty-one thousand, ninety".