131621060 has 24 divisors (see below), whose sum is σ = 276634176. Its totient is φ = 52604640.

The previous prime is 131621051. The next prime is 131621069. The reversal of 131621060 is 60126131.

It is an interprime number because it is at equal distance from previous prime (131621051) and next prime (131621069).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (131621069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33815 + ... + 37505.

It is an arithmetic number, because the mean of its divisors is an integer number (11526424).

Almost surely, 2^131621060 is an apocalyptic number.

131621060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131621060 is an abundant number, since it is smaller than the sum of its proper divisors (145013116).

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

131621060 is a wasteful number, since it uses less digits than its factorization.

131621060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483 (or 5481 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 131621060 is about 11472.6221937271. The cubic root of 131621060 is about 508.6766408561.

Adding to 131621060 its reverse (60126131), we get a palindrome (191747191).

The spelling of 131621060 in words is "one hundred thirty-one million, six hundred twenty-one thousand, sixty".