131117154 has 16 divisors (see below), whose sum is σ = 299696448. Its totient is φ = 37462032.

The previous prime is 131117153. The next prime is 131117167. The reversal of 131117154 is 451711131.

It is not an unprimeable number, because it can be changed into a prime (131117153) 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, 1560877 + ... + 1560960.

It is an arithmetic number, because the mean of its divisors is an integer number (18731028).

Almost surely, 2^131117154 is an apocalyptic number.

131117154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131117154 is an abundant number, since it is smaller than the sum of its proper divisors (168579294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131117154 is a wasteful number, since it uses less digits than its factorization.

131117154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121849.

The product of its digits is 420, while the sum is 24.

The square root of 131117154 is about 11450.6398947832. The cubic root of 131117154 is about 508.0266612374.

Adding to 131117154 its reverse (451711131), we get a palindrome (582828285).

The spelling of 131117154 in words is "one hundred thirty-one million, one hundred seventeen thousand, one hundred fifty-four".