131106251 has 8 divisors (see below), whose sum is σ = 138725520. Its totient is φ = 123558912.

The previous prime is 131106247. The next prime is 131106299. The reversal of 131106251 is 152601131.

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 131106251 - 2² = 131106247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131106221) 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, 14210 + ... + 21543.

It is an arithmetic number, because the mean of its divisors is an integer number (17340690).

Almost surely, 2^131106251 is an apocalyptic number.

131106251 is a deficient number, since it is larger than the sum of its proper divisors (7619269).

131106251 is a wasteful number, since it uses less digits than its factorization.

131106251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35965.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 131106251 is about 11450.1637979550. The cubic root of 131106251 is about 508.0125792553.

Adding to 131106251 its reverse (152601131), we get a palindrome (283707382).

The spelling of 131106251 in words is "one hundred thirty-one million, one hundred six thousand, two hundred fifty-one".