131045355 has 72 divisors (see below), whose sum is σ = 267257952. Its totient is φ = 59222016.

The previous prime is 131045311. The next prime is 131045357. The reversal of 131045355 is 553540131.

It is not a de Polignac number, because 131045355 - 2¹⁵ = 131012587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131045357) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 226827 + ... + 227403.

It is an arithmetic number, because the mean of its divisors is an integer number (3711916).

Almost surely, 2^131045355 is an apocalyptic number.

131045355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131045355 is an abundant number, since it is smaller than the sum of its proper divisors (136212597).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131045355 is a wasteful number, since it uses less digits than its factorization.

131045355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 131045355 is about 11447.5043131680. The cubic root of 131045355 is about 507.9339134793.

Adding to 131045355 its reverse (553540131), we get a palindrome (684585486).

It can be divided in two parts, 1310 and 45355, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 131045355 in words is "one hundred thirty-one million, forty-five thousand, three hundred fifty-five".