1460172157 has 4 divisors (see below), whose sum is σ = 1461578560. Its totient is φ = 1458765756.

The previous prime is 1460172151. The next prime is 1460172191. The reversal of 1460172157 is 7512710641.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7512710641 = 331 ⋅22697011.

It is a cyclic number.

It is not a de Polignac number, because 1460172157 - 2³ = 1460172149 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 (1460172151) 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, 701643 + ... + 703720.

It is an arithmetic number, because the mean of its divisors is an integer number (365394640).

Almost surely, 2^1460172157 is an apocalyptic number.

It is an amenable number.

1460172157 is a deficient number, since it is larger than the sum of its proper divisors (1406403).

1460172157 is a wasteful number, since it uses less digits than its factorization.

1460172157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406402.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 1460172157 is about 38212.1990599861. The cubic root of 1460172157 is about 1134.4917820177.

Adding to 1460172157 its reverse (7512710641), we get a palindrome (8972882798).

The spelling of 1460172157 in words is "one billion, four hundred sixty million, one hundred seventy-two thousand, one hundred fifty-seven".