338623157 has 2 divisors, whose sum is σ = 338623158. Its totient is φ = 338623156.

The previous prime is 338623147. The next prime is 338623163. The reversal of 338623157 is 751326833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245674276 + 92948881 = 15674^2 + 9641^2 .

It is a cyclic number.

It is not a de Polignac number, because 338623157 - 2²⁰ = 337574581 is a prime.

It is a super-2 number, since 2×338623157² = 229331284913293298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 338623157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338623127) 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 as a sum of consecutive naturals, namely, 169311578 + 169311579.

It is an arithmetic number, because the mean of its divisors is an integer number (169311579).

Almost surely, 2^338623157 is an apocalyptic number.

It is an amenable number.

338623157 is a deficient number, since it is larger than the sum of its proper divisors (1).

338623157 is an equidigital number, since it uses as much as digits as its factorization.

338623157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 338623157 is about 18401.7161427949. The cubic root of 338623157 is about 697.0098006961.

The spelling of 338623157 in words is "three hundred thirty-eight million, six hundred twenty-three thousand, one hundred fifty-seven".