157494263 has 4 divisors (see below), whose sum is σ = 158966280. Its totient is φ = 156022248.

The previous prime is 157494257. The next prime is 157494289. The reversal of 157494263 is 362494751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157494263 - 2⁴ = 157494247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157494263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157494203) 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, 735848 + ... + 736061.

It is an arithmetic number, because the mean of its divisors is an integer number (39741570).

Almost surely, 2^157494263 is an apocalyptic number.

157494263 is a deficient number, since it is larger than the sum of its proper divisors (1472017).

157494263 is a wasteful number, since it uses less digits than its factorization.

157494263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472016.

The product of its digits is 181440, while the sum is 41.

The square root of 157494263 is about 12549.6718283786. The cubic root of 157494263 is about 540.0345919770.

The spelling of 157494263 in words is "one hundred fifty-seven million, four hundred ninety-four thousand, two hundred sixty-three".