117215461 has 4 divisors (see below), whose sum is σ = 127871424. Its totient is φ = 106559500.

The previous prime is 117215453. The next prime is 117215467. The reversal of 117215461 is 164512711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117215461 - 2³ = 117215453 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 (117215467) 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, 5327965 + ... + 5327986.

It is an arithmetic number, because the mean of its divisors is an integer number (31967856).

Almost surely, 2^117215461 is an apocalyptic number.

117215461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

117215461 is a deficient number, since it is larger than the sum of its proper divisors (10655963).

117215461 is a wasteful number, since it uses less digits than its factorization.

117215461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655962.

The product of its digits is 1680, while the sum is 28.

The square root of 117215461 is about 10826.6089335489. The cubic root of 117215461 is about 489.3973724472.

The spelling of 117215461 in words is "one hundred seventeen million, two hundred fifteen thousand, four hundred sixty-one".