49131185 has 4 divisors (see below), whose sum is σ = 58957428. Its totient is φ = 39304944.

The previous prime is 49131113. The next prime is 49131217. The reversal of 49131185 is 58113194.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9541921 + 39589264 = 3089^2 + 6292^2 .

It is a cyclic number.

It is not a de Polignac number, because 49131185 - 2¹⁰ = 49130161 is a prime.

It is a Duffinian number.

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, 4913114 + ... + 4913123.

It is an arithmetic number, because the mean of its divisors is an integer number (14739357).

Almost surely, 2^49131185 is an apocalyptic number.

It is an amenable number.

49131185 is a deficient number, since it is larger than the sum of its proper divisors (9826243).

49131185 is an equidigital number, since it uses as much as digits as its factorization.

49131185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826242.

The product of its digits is 4320, while the sum is 32.

The square root of 49131185 is about 7009.3640938390. The cubic root of 49131185 is about 366.2568419243.

Subtracting 49131185 from its reverse (58113194), we obtain a square (8982009 = 2997²).

The spelling of 49131185 in words is "forty-nine million, one hundred thirty-one thousand, one hundred eighty-five".