131051040 has 192 divisors, whose sum is σ = 435746304. Its totient is φ = 33067008.

The previous prime is 131050991. The next prime is 131051051. The reversal of 131051040 is 40150131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 834642 + ... + 834798.

It is an arithmetic number, because the mean of its divisors is an integer number (2269512).

Almost surely, 2^131051040 is an apocalyptic number.

131051040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131051040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217873152).

131051040 is an abundant number, since it is smaller than the sum of its proper divisors (304695264).

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

131051040 is a wasteful number, since it uses less digits than its factorization.

131051040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 131051040 is about 11447.7526178722. The cubic root of 131051040 is about 507.9412584237.

Subtracting from 131051040 its reverse (40150131), we obtain a palindrome (90900909).

The spelling of 131051040 in words is "one hundred thirty-one million, fifty-one thousand, forty".