131002250 has 32 divisors (see below), whose sum is σ = 255909888. Its totient is φ = 50120400.

The previous prime is 131002247. The next prime is 131002253. The reversal of 131002250 is 52200131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131002247) and next prime (131002253).

It is not an unprimeable number, because it can be changed into a prime (131002253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5642 + ... + 17141.

It is an arithmetic number, because the mean of its divisors is an integer number (7997184).

Almost surely, 2^131002250 is an apocalyptic number.

131002250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131002250 is a deficient number, since it is larger than the sum of its proper divisors (124907638).

131002250 is a wasteful number, since it uses less digits than its factorization.

131002250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22823 (or 22813 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 131002250 is about 11445.6214335439. The cubic root of 131002250 is about 507.8782154797.

Adding to 131002250 its reverse (52200131), we get a palindrome (183202381).

The spelling of 131002250 in words is "one hundred thirty-one million, two thousand, two hundred fifty".