49137018 has 16 divisors (see below), whose sum is σ = 112313280. Its totient is φ = 14039136.

The previous prime is 49137013. The next prime is 49137031. The reversal of 49137018 is 81073194.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49137018.

It is not an unprimeable number, because it can be changed into a prime (49137013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584923 + ... + 585006.

It is an arithmetic number, because the mean of its divisors is an integer number (7019580).

Almost surely, 2^49137018 is an apocalyptic number.

49137018 is an abundant number, since it is smaller than the sum of its proper divisors (63176262).

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

49137018 is a wasteful number, since it uses less digits than its factorization.

49137018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169941.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 49137018 is about 7009.7801677371. The cubic root of 49137018 is about 366.2713357169.

The spelling of 49137018 in words is "forty-nine million, one hundred thirty-seven thousand, eighteen".