1170215445 has 32 divisors (see below), whose sum is σ = 2160617472. Its totient is φ = 529756992.

The previous prime is 1170215441. The next prime is 1170215483. The reversal of 1170215445 is 5445120711.

It is not a de Polignac number, because 1170215445 - 2² = 1170215441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170215441) 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, 43287 + ... + 64916.

It is an arithmetic number, because the mean of its divisors is an integer number (67519296).

Almost surely, 2^1170215445 is an apocalyptic number.

1170215445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1170215445 is a deficient number, since it is larger than the sum of its proper divisors (990402027).

1170215445 is a wasteful number, since it uses less digits than its factorization.

1170215445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108321.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 1170215445 is about 34208.4119040917. The cubic root of 1170215445 is about 1053.7929172599.

The spelling of 1170215445 in words is "one billion, one hundred seventy million, two hundred fifteen thousand, four hundred forty-five".