49145319 has 16 divisors (see below), whose sum is σ = 75974400. Its totient is φ = 31338648.

The previous prime is 49145311. The next prime is 49145329. The reversal of 49145319 is 91354194.

It is a happy number.

It is not a de Polignac number, because 49145319 - 2³ = 49145311 is a prime.

It is a super-2 number, since 2×49145319² = 4830524759223522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49145311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38949 + ... + 40190.

It is an arithmetic number, because the mean of its divisors is an integer number (4748400).

Almost surely, 2^49145319 is an apocalyptic number.

49145319 is a deficient number, since it is larger than the sum of its proper divisors (26829081).

49145319 is a wasteful number, since it uses less digits than its factorization.

49145319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79171 (or 79165 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 49145319 is about 7010.3722440395. The cubic root of 49145319 is about 366.2919599990.

The spelling of 49145319 in words is "forty-nine million, one hundred forty-five thousand, three hundred nineteen".