131140235 has 4 divisors (see below), whose sum is σ = 157368288. Its totient is φ = 104912184.

The previous prime is 131140213. The next prime is 131140241. The reversal of 131140235 is 532041131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532041131 = 307 ⋅1733033.

It is a cyclic number.

It is not a de Polignac number, because 131140235 - 2²⁰ = 130091659 is a prime.

It is a super-2 number, since 2×131140235² = 34395522471710450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13114019 + ... + 13114028.

It is an arithmetic number, because the mean of its divisors is an integer number (39342072).

Almost surely, 2^131140235 is an apocalyptic number.

131140235 is a deficient number, since it is larger than the sum of its proper divisors (26228053).

131140235 is an equidigital number, since it uses as much as digits as its factorization.

131140235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26228052.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131140235 is about 11451.6476980389. The cubic root of 131140235 is about 508.0564693772.

Adding to 131140235 its reverse (532041131), we get a palindrome (663181366).

The spelling of 131140235 in words is "one hundred thirty-one million, one hundred forty thousand, two hundred thirty-five".