131440736145 has 32 divisors (see below), whose sum is σ = 219579478272. Its totient is φ = 67013920512.

The previous prime is 131440736111. The next prime is 131440736171. The reversal of 131440736145 is 541637044131.

It is not a de Polignac number, because 131440736145 - 2¹⁷ = 131440605073 is a prime.

It is a super-2 number, since 2×131440736145² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471567 + ... + 696603.

It is an arithmetic number, because the mean of its divisors is an integer number (6861858696).

Almost surely, 2^131440736145 is an apocalyptic number.

131440736145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131440736145 is a deficient number, since it is larger than the sum of its proper divisors (88138742127).

131440736145 is a wasteful number, since it uses less digits than its factorization.

131440736145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226761.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 131440736145 in words is "one hundred thirty-one billion, four hundred forty million, seven hundred thirty-six thousand, one hundred forty-five".