157003729 has 4 divisors (see below), whose sum is σ = 157044976. Its totient is φ = 156962484.

The previous prime is 157003723. The next prime is 157003739. The reversal of 157003729 is 927300751.

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.

It is a cyclic number.

It is not a de Polignac number, because 157003729 - 2¹⁷ = 156872657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157003694 and 157003703.

It is not an unprimeable number, because it can be changed into a prime (157003723) 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, 14259 + ... + 22744.

It is an arithmetic number, because the mean of its divisors is an integer number (39261244).

Almost surely, 2^157003729 is an apocalyptic number.

It is an amenable number.

157003729 is a deficient number, since it is larger than the sum of its proper divisors (41247).

157003729 is an equidigital number, since it uses as much as digits as its factorization.

157003729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41246.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 157003729 is about 12530.1128885577. The cubic root of 157003729 is about 539.4733422603.

The spelling of 157003729 in words is "one hundred fifty-seven million, three thousand, seven hundred twenty-nine".