102432131 has 4 divisors (see below), whose sum is σ = 102584112. Its totient is φ = 102280152.

The previous prime is 102432073. The next prime is 102432139. The reversal of 102432131 is 131234201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102432131 - 2¹⁰ = 102431107 is a prime.

It is a super-2 number, since 2×102432131² = 20984682922402322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102432139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74975 + ... + 76328.

It is an arithmetic number, because the mean of its divisors is an integer number (25646028).

Almost surely, 2^102432131 is an apocalyptic number.

102432131 is a deficient number, since it is larger than the sum of its proper divisors (151981).

102432131 is an equidigital number, since it uses as much as digits as its factorization.

102432131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151980.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 102432131 is about 10120.8759996356. The cubic root of 102432131 is about 467.8917661291.

Adding to 102432131 its reverse (131234201), we get a palindrome (233666332).

The spelling of 102432131 in words is "one hundred two million, four hundred thirty-two thousand, one hundred thirty-one".