131245131 has 8 divisors (see below), whose sum is σ = 175119760. Its totient is φ = 87433632.

The previous prime is 131245129. The next prime is 131245183. The reversal of 131245131 is 131542131.

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

It is not a de Polignac number, because 131245131 - 2¹ = 131245129 is a prime.

It is a super-2 number, since 2×131245131² = 34450568822414322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131245098 and 131245107.

It is not an unprimeable number, because it can be changed into a prime (131245111) 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, 10696 + ... + 19413.

It is an arithmetic number, because the mean of its divisors is an integer number (21889970).

Almost surely, 2^131245131 is an apocalyptic number.

131245131 is a deficient number, since it is larger than the sum of its proper divisors (43874629).

131245131 is a wasteful number, since it uses less digits than its factorization.

131245131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31565.

The product of its digits is 360, while the sum is 21.

The square root of 131245131 is about 11456.2267348373. The cubic root of 131245131 is about 508.1918940962.

Adding to 131245131 its reverse (131542131), we get a palindrome (262787262).

The spelling of 131245131 in words is "one hundred thirty-one million, two hundred forty-five thousand, one hundred thirty-one".