117411951 has 4 divisors (see below), whose sum is σ = 156549272. Its totient is φ = 78274632.

The previous prime is 117411949. The next prime is 117411967. The reversal of 117411951 is 159114711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 117411951 - 2¹ = 117411949 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 (117411971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19568656 + ... + 19568661.

It is an arithmetic number, because the mean of its divisors is an integer number (39137318).

Almost surely, 2^117411951 is an apocalyptic number.

117411951 is a deficient number, since it is larger than the sum of its proper divisors (39137321).

117411951 is an equidigital number, since it uses as much as digits as its factorization.

117411951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39137320.

The product of its digits is 1260, while the sum is 30.

The square root of 117411951 is about 10835.6795356821. The cubic root of 117411951 is about 489.6706811229.

The spelling of 117411951 in words is "one hundred seventeen million, four hundred eleven thousand, nine hundred fifty-one".