117150997 has 2 divisors, whose sum is σ = 117150998. Its totient is φ = 117150996.

The previous prime is 117150989. The next prime is 117151003. The reversal of 117150997 is 799051711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111323601 + 5827396 = 10551^2 + 2414^2 .

It is a cyclic number.

It is not a de Polignac number, because 117150997 - 2³ = 117150989 is a prime.

It is equal to p_6688552 and since 117150997 and 6688552 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117150977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58575498 + 58575499.

It is an arithmetic number, because the mean of its divisors is an integer number (58575499).

Almost surely, 2^117150997 is an apocalyptic number.

It is an amenable number.

117150997 is a deficient number, since it is larger than the sum of its proper divisors (1).

117150997 is an equidigital number, since it uses as much as digits as its factorization.

117150997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 40.

The square root of 117150997 is about 10823.6314146408. The cubic root of 117150997 is about 489.3076394114.

The spelling of 117150997 in words is "one hundred seventeen million, one hundred fifty thousand, nine hundred ninety-seven".