157333709 has 8 divisors (see below), whose sum is σ = 171184440. Its totient is φ = 143732736.

The previous prime is 157333679. The next prime is 157333723. The reversal of 157333709 is 907333751.

It can be written as a sum of positive squares in 4 ways, for example, as 9030025 + 148303684 = 3005^2 + 12178^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157333709 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 (157333789) 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, 61124 + ... + 63645.

It is an arithmetic number, because the mean of its divisors is an integer number (21398055).

Almost surely, 2^157333709 is an apocalyptic number.

It is an amenable number.

157333709 is a deficient number, since it is larger than the sum of its proper divisors (13850731).

157333709 is a wasteful number, since it uses less digits than its factorization.

157333709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124879.

The product of its (nonzero) digits is 59535, while the sum is 38.

The square root of 157333709 is about 12543.2734563191. The cubic root of 157333709 is about 539.8510208593.

The spelling of 157333709 in words is "one hundred fifty-seven million, three hundred thirty-three thousand, seven hundred nine".