157130473 has 8 divisors (see below), whose sum is σ = 166500360. Its totient is φ = 147774720.

The previous prime is 157130459. The next prime is 157130489. The reversal of 157130473 is 374031751.

It can be written as a sum of positive squares in 4 ways, for example, as 6135529 + 150994944 = 2477^2 + 12288^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157130473 - 2¹³ = 157122281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157130173) 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 7 ways as a sum of consecutive naturals, for example, 26943 + ... + 32251.

It is an arithmetic number, because the mean of its divisors is an integer number (20812545).

Almost surely, 2^157130473 is an apocalyptic number.

It is an amenable number.

157130473 is a deficient number, since it is larger than the sum of its proper divisors (9369887).

157130473 is a wasteful number, since it uses less digits than its factorization.

157130473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7067.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 157130473 is about 12535.1694444072. The cubic root of 157130473 is about 539.6184696383.

The spelling of 157130473 in words is "one hundred fifty-seven million, one hundred thirty thousand, four hundred seventy-three".