117212567 has 4 divisors (see below), whose sum is σ = 117820080. Its totient is φ = 116605056.

The previous prime is 117212549. The next prime is 117212573. The reversal of 117212567 is 765212711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 765212711 = 31 ⋅24684281.

It is a cyclic number.

It is not a de Polignac number, because 117212567 - 2¹² = 117208471 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 (117212587) 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, 303467 + ... + 303852.

It is an arithmetic number, because the mean of its divisors is an integer number (29455020).

Almost surely, 2^117212567 is an apocalyptic number.

117212567 is a deficient number, since it is larger than the sum of its proper divisors (607513).

117212567 is an equidigital number, since it uses as much as digits as its factorization.

117212567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607512.

The product of its digits is 5880, while the sum is 32.

The square root of 117212567 is about 10826.4752805334. The cubic root of 117212567 is about 489.3933447429.

The spelling of 117212567 in words is "one hundred seventeen million, two hundred twelve thousand, five hundred sixty-seven".