3157430173 has 4 divisors (see below), whose sum is σ = 3166799740. Its totient is φ = 3148060608.

The previous prime is 3157430161. The next prime is 3157430183. The reversal of 3157430173 is 3710347513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1496297124 + 1661133049 = 38682^2 + 40757^2 .

It is a cyclic number.

It is not a de Polignac number, because 3157430173 - 2²⁹ = 2620559261 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 (3157430123) 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, 4684278 + ... + 4684951.

It is an arithmetic number, because the mean of its divisors is an integer number (791699935).

Almost surely, 2^3157430173 is an apocalyptic number.

It is an amenable number.

3157430173 is a deficient number, since it is larger than the sum of its proper divisors (9369567).

3157430173 is an equidigital number, since it uses as much as digits as its factorization.

3157430173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9369566.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 3157430173 is about 56191.0150557898. The cubic root of 3157430173 is about 1467.0488826567.

Adding to 3157430173 its reverse (3710347513), we get a palindrome (6867777686).

The spelling of 3157430173 in words is "three billion, one hundred fifty-seven million, four hundred thirty thousand, one hundred seventy-three".