1170211457 has 4 divisors (see below), whose sum is σ = 1221090240. Its totient is φ = 1119332676.

The previous prime is 1170211423. The next prime is 1170211459. The reversal of 1170211457 is 7541120711.

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 a de Polignac number, because none of the positive numbers 2^k-1170211457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1170211459) 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, 25439357 + ... + 25439402.

It is an arithmetic number, because the mean of its divisors is an integer number (305272560).

Almost surely, 2^1170211457 is an apocalyptic number.

It is an amenable number.

1170211457 is a deficient number, since it is larger than the sum of its proper divisors (50878783).

1170211457 is an equidigital number, since it uses as much as digits as its factorization.

1170211457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50878782.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 1170211457 is about 34208.3536142855. The cubic root of 1170211457 is about 1053.7917201780.

The spelling of 1170211457 in words is "one billion, one hundred seventy million, two hundred eleven thousand, four hundred fifty-seven".