157030403 has 2 divisors, whose sum is σ = 157030404. Its totient is φ = 157030402.

The previous prime is 157030381. The next prime is 157030427. The reversal of 157030403 is 304030751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157030403 - 2¹⁴ = 157014019 is a prime.

It is not a weakly prime, because it can be changed into another prime (157030493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78515201 + 78515202.

It is an arithmetic number, because the mean of its divisors is an integer number (78515202).

Almost surely, 2^157030403 is an apocalyptic number.

157030403 is a deficient number, since it is larger than the sum of its proper divisors (1).

157030403 is an equidigital number, since it uses as much as digits as its factorization.

157030403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 157030403 is about 12531.1772391903. The cubic root of 157030403 is about 539.5038916347.

The spelling of 157030403 in words is "one hundred fifty-seven million, thirty thousand, four hundred three".