131254247 has 8 divisors (see below), whose sum is σ = 132952512. Its totient is φ = 129564000.

The previous prime is 131254241. The next prime is 131254267. The reversal of 131254247 is 742452131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131254247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131254241) 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, 35297 + ... + 38837.

It is an arithmetic number, because the mean of its divisors is an integer number (16619064).

Almost surely, 2^131254247 is an apocalyptic number.

131254247 is a deficient number, since it is larger than the sum of its proper divisors (1698265).

131254247 is a wasteful number, since it uses less digits than its factorization.

131254247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009.

The product of its digits is 6720, while the sum is 29.

The square root of 131254247 is about 11456.6245901662. The cubic root of 131254247 is about 508.2036597900.

The spelling of 131254247 in words is "one hundred thirty-one million, two hundred fifty-four thousand, two hundred forty-seven".