157763813 has 2 divisors, whose sum is σ = 157763814. Its totient is φ = 157763812.

The previous prime is 157763789. The next prime is 157763839. The reversal of 157763813 is 318367751.

157763813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113912929 + 43850884 = 10673^2 + 6622^2 .

It is a cyclic number.

It is not a de Polignac number, because 157763813 - 2¹⁰ = 157762789 is a prime.

It is equal to p_8856095 and since 157763813 and 8856095 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157763843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78881906 + 78881907.

It is an arithmetic number, because the mean of its divisors is an integer number (78881907).

Almost surely, 2^157763813 is an apocalyptic number.

It is an amenable number.

157763813 is a deficient number, since it is larger than the sum of its proper divisors (1).

157763813 is an equidigital number, since it uses as much as digits as its factorization.

157763813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 157763813 is about 12560.4065618912. The cubic root of 157763813 is about 540.3425044796.

The spelling of 157763813 in words is "one hundred fifty-seven million, seven hundred sixty-three thousand, eight hundred thirteen".