158772763 has 2 divisors, whose sum is σ = 158772764. Its totient is φ = 158772762.

The previous prime is 158772743. The next prime is 158772833. The reversal of 158772763 is 367277851.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158772763 is a prime.

It is not a weakly prime, because it can be changed into another prime (158772743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79386381 + 79386382.

It is an arithmetic number, because the mean of its divisors is an integer number (79386382).

Almost surely, 2^158772763 is an apocalyptic number.

158772763 is a deficient number, since it is larger than the sum of its proper divisors (1).

158772763 is an equidigital number, since it uses as much as digits as its factorization.

158772763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 46.

The square root of 158772763 is about 12600.5064580754. The cubic root of 158772763 is about 541.4919452675.

It can be divided in two parts, 15 and 8772763, that added together give a palindrome (8772778).

The spelling of 158772763 in words is "one hundred fifty-eight million, seven hundred seventy-two thousand, seven hundred sixty-three".