1572160117 has 4 divisors (see below), whose sum is σ = 1715083776. Its totient is φ = 1429236460.

The previous prime is 1572160049. The next prime is 1572160141. The reversal of 1572160117 is 7110612751.

It is a happy number.

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 1572160117 - 2⁷ = 1572159989 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 (1572160517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71461813 + ... + 71461834.

It is an arithmetic number, because the mean of its divisors is an integer number (428770944).

Almost surely, 2^1572160117 is an apocalyptic number.

It is an amenable number.

1572160117 is a deficient number, since it is larger than the sum of its proper divisors (142923659).

1572160117 is a wasteful number, since it uses less digits than its factorization.

1572160117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142923658.

The product of its (nonzero) digits is 2940, while the sum is 31.

The square root of 1572160117 is about 39650.4743603403. The cubic root of 1572160117 is about 1162.7836725849.

Adding to 1572160117 its reverse (7110612751), we get a palindrome (8682772868).

The spelling of 1572160117 in words is "one billion, five hundred seventy-two million, one hundred sixty thousand, one hundred seventeen".