157293763 has 4 divisors (see below), whose sum is σ = 171593208. Its totient is φ = 142994320.

The previous prime is 157293751. The next prime is 157293781. The reversal of 157293763 is 367392751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 367392751 = 11 ⋅33399341.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157293763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157293713) 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 3 ways as a sum of consecutive naturals, for example, 7149706 + ... + 7149727.

It is an arithmetic number, because the mean of its divisors is an integer number (42898302).

Almost surely, 2^157293763 is an apocalyptic number.

157293763 is a deficient number, since it is larger than the sum of its proper divisors (14299445).

157293763 is a wasteful number, since it uses less digits than its factorization.

157293763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14299444.

The product of its digits is 238140, while the sum is 43.

The square root of 157293763 is about 12541.6810276773. The cubic root of 157293763 is about 539.8053287773.

The spelling of 157293763 in words is "one hundred fifty-seven million, two hundred ninety-three thousand, seven hundred sixty-three".