1170157215 has 16 divisors (see below), whose sum is σ = 1890791136. Its totient is φ = 617904000.

The previous prime is 1170157201. The next prime is 1170157249. The reversal of 1170157215 is 5127510711.

It is not a de Polignac number, because 1170157215 - 2⁹ = 1170156703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384676 + ... + 387705.

It is an arithmetic number, because the mean of its divisors is an integer number (118174446).

Almost surely, 2^1170157215 is an apocalyptic number.

1170157215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1170157215 is a deficient number, since it is larger than the sum of its proper divisors (720633921).

1170157215 is a wasteful number, since it uses less digits than its factorization.

1170157215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772490.

The product of its (nonzero) digits is 2450, while the sum is 30.

The square root of 1170157215 is about 34207.5607870541. The cubic root of 1170157215 is about 1053.7754380342.

Adding to 1170157215 its reverse (5127510711), we get a palindrome (6297667926).

The spelling of 1170157215 in words is "one billion, one hundred seventy million, one hundred fifty-seven thousand, two hundred fifteen".