117622457 has 4 divisors (see below), whose sum is σ = 119550756. Its totient is φ = 115694160.

The previous prime is 117622451. The next prime is 117622471. The reversal of 117622457 is 754226711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6446521 + 111175936 = 2539^2 + 10544^2 .

It is a cyclic number.

It is not a de Polignac number, because 117622457 - 2¹⁰ = 117621433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117622451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964058 + ... + 964179.

It is an arithmetic number, because the mean of its divisors is an integer number (29887689).

Almost surely, 2^117622457 is an apocalyptic number.

It is an amenable number.

117622457 is a deficient number, since it is larger than the sum of its proper divisors (1928299).

117622457 is an equidigital number, since it uses as much as digits as its factorization.

117622457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928298.

The product of its digits is 23520, while the sum is 35.

The square root of 117622457 is about 10845.3887436090. The cubic root of 117622457 is about 489.9631473048.

The spelling of 117622457 in words is "one hundred seventeen million, six hundred twenty-two thousand, four hundred fifty-seven".