117221455 has 32 divisors (see below), whose sum is σ = 160030080. Its totient is φ = 81776640.

The previous prime is 117221453. The next prime is 117221459. The reversal of 117221455 is 554122711.

It is not a de Polignac number, because 117221455 - 2¹ = 117221453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117221453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132615 + ... + 133495.

It is an arithmetic number, because the mean of its divisors is an integer number (5000940).

Almost surely, 2^117221455 is an apocalyptic number.

117221455 is a deficient number, since it is larger than the sum of its proper divisors (42808625).

117221455 is a wasteful number, since it uses less digits than its factorization.

117221455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its digits is 2800, while the sum is 28.

The square root of 117221455 is about 10826.8857479887. The cubic root of 117221455 is about 489.4057143440.

The spelling of 117221455 in words is "one hundred seventeen million, two hundred twenty-one thousand, four hundred fifty-five".