157431473 has 8 divisors (see below), whose sum is σ = 166089120. Its totient is φ = 148811040.

The previous prime is 157431433. The next prime is 157431479. The reversal of 157431473 is 374134751.

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

It is not a de Polignac number, because 157431473 - 2⁶ = 157431409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157431479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383 + ... + 17748.

It is an arithmetic number, because the mean of its divisors is an integer number (20761140).

Almost surely, 2^157431473 is an apocalyptic number.

It is an amenable number.

157431473 is a deficient number, since it is larger than the sum of its proper divisors (8657647).

157431473 is a wasteful number, since it uses less digits than its factorization.

157431473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18607.

The product of its digits is 35280, while the sum is 35.

The square root of 157431473 is about 12547.1699199461. The cubic root of 157431473 is about 539.9628152264.

The spelling of 157431473 in words is "one hundred fifty-seven million, four hundred thirty-one thousand, four hundred seventy-three".