49157199 has 96 divisors (see below), whose sum is σ = 96038400. Its totient is φ = 24564384.

The previous prime is 49157177. The next prime is 49157203. The reversal of 49157199 is 99175194.

49157199 is a `hidden beast` number, since 491 + 5 + 71 + 99 = 666.

It is not a de Polignac number, because 49157199 - 2⁷ = 49157071 is a prime.

Its product of digits (102060) is a multiple of the sum of its prime divisors (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49155199) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2587212 + ... + 2587230.

It is an arithmetic number, because the mean of its divisors is an integer number (1000400).

Almost surely, 2^49157199 is an apocalyptic number.

49157199 is a deficient number, since it is larger than the sum of its proper divisors (46881201).

49157199 is an equidigital number, since it uses as much as digits as its factorization.

49157199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 42 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 49157199 is about 7011.2195087588. The cubic root of 49157199 is about 366.3214724598.

The spelling of 49157199 in words is "forty-nine million, one hundred fifty-seven thousand, one hundred ninety-nine".