102140131 has 8 divisors (see below), whose sum is σ = 109002240. Its totient is φ = 95372928.

The previous prime is 102140123. The next prime is 102140147. The reversal of 102140131 is 131041201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102140131 - 2³ = 102140123 is a prime.

It is a super-2 number, since 2×102140131² = 20865212721394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102140111) 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, 21496 + ... + 25813.

It is an arithmetic number, because the mean of its divisors is an integer number (13625280).

Almost surely, 2^102140131 is an apocalyptic number.

102140131 is a deficient number, since it is larger than the sum of its proper divisors (6862109).

102140131 is a wasteful number, since it uses less digits than its factorization.

102140131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47453.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102140131 is about 10106.4400755162. The cubic root of 102140131 is about 467.4467416238.

Adding to 102140131 its reverse (131041201), we get a palindrome (233181332).

The spelling of 102140131 in words is "one hundred two million, one hundred forty thousand, one hundred thirty-one".