157304403 has 16 divisors (see below), whose sum is σ = 233318400. Its totient is φ = 104745960.

The previous prime is 157304393. The next prime is 157304431. The reversal of 157304403 is 304403751.

It is not a de Polignac number, because 157304403 - 2¹² = 157300307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (157304453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23818 + ... + 29696.

It is an arithmetic number, because the mean of its divisors is an integer number (14582400).

Almost surely, 2^157304403 is an apocalyptic number.

157304403 is a deficient number, since it is larger than the sum of its proper divisors (76013997).

157304403 is an equidigital number, since it uses as much as digits as its factorization.

157304403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6879 (or 6873 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 157304403 is about 12542.1052060649. The cubic root of 157304403 is about 539.8175000571.

The spelling of 157304403 in words is "one hundred fifty-seven million, three hundred four thousand, four hundred three".