6131209090 has 16 divisors (see below), whose sum is σ = 11038959288. Its totient is φ = 2451865216.

The previous prime is 6131208997. The next prime is 6131209127. The reversal of 6131209090 is 909021316.

It can be written as a sum of positive squares in 4 ways, for example, as 4936608121 + 1194600969 = 70261^2 + 34563^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34537 + ... + 115996.

Almost surely, 2^6131209090 is an apocalyptic number.

6131209090 is a deficient number, since it is larger than the sum of its proper divisors (4907750198).

6131209090 is a wasteful number, since it uses less digits than its factorization.

6131209090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154613.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 6131209090 is about 78302.0375852378. The cubic root of 6131209090 is about 1830.2709035878.

The spelling of 6131209090 in words is "six billion, one hundred thirty-one million, two hundred nine thousand, ninety".