131025650 has 24 divisors (see below), whose sum is σ = 278523840. Its totient is φ = 44922960.

The previous prime is 131025619. The next prime is 131025659. The reversal of 131025650 is 56520131.

It is not an unprimeable number, because it can be changed into a prime (131025659) 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 11 ways as a sum of consecutive naturals, for example, 186830 + ... + 187529.

It is an arithmetic number, because the mean of its divisors is an integer number (11605160).

Almost surely, 2^131025650 is an apocalyptic number.

131025650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131025650 is an abundant number, since it is smaller than the sum of its proper divisors (147498190).

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

131025650 is a wasteful number, since it uses less digits than its factorization.

131025650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374378 (or 374373 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 131025650 is about 11446.6436128675. The cubic root of 131025650 is about 507.9084532369.

Adding to 131025650 its reverse (56520131), we get a palindrome (187545781).

The spelling of 131025650 in words is "one hundred thirty-one million, twenty-five thousand, six hundred fifty".