117031651 has 4 divisors (see below), whose sum is σ = 127670904. Its totient is φ = 106392400.

The previous prime is 117031637. The next prime is 117031657. The reversal of 117031651 is 156130711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156130711 = 11 ⋅14193701.

It is a cyclic number.

It is not a de Polignac number, because 117031651 - 2⁹ = 117031139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117031657) 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, 5319610 + ... + 5319631.

It is an arithmetic number, because the mean of its divisors is an integer number (31917726).

Almost surely, 2^117031651 is an apocalyptic number.

117031651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117031651 is a deficient number, since it is larger than the sum of its proper divisors (10639253).

117031651 is a wasteful number, since it uses less digits than its factorization.

117031651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10639252.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 117031651 is about 10818.1167954501. The cubic root of 117031651 is about 489.1414244335.

The spelling of 117031651 in words is "one hundred seventeen million, thirty-one thousand, six hundred fifty-one".