131637190 has 16 divisors (see below), whose sum is σ = 242458128. Its totient is φ = 51430176.

The previous prime is 131637169. The next prime is 131637197. The reversal of 131637190 is 91736131.

It is a super-2 number, since 2×131637190² = 34656699582192200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131637197) by changing a digit.

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, 152637 + ... + 153496.

It is an arithmetic number, because the mean of its divisors is an integer number (15153633).

Almost surely, 2^131637190 is an apocalyptic number.

131637190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131637190 is a deficient number, since it is larger than the sum of its proper divisors (110820938).

131637190 is a wasteful number, since it uses less digits than its factorization.

131637190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306183.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 131637190 is about 11473.3251501036. The cubic root of 131637190 is about 508.6974192409.

The spelling of 131637190 in words is "one hundred thirty-one million, six hundred thirty-seven thousand, one hundred ninety".