238501493 has 2 divisors, whose sum is σ = 238501494. Its totient is φ = 238501492.

The previous prime is 238501489. The next prime is 238501499. The reversal of 238501493 is 394105832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237714724 + 786769 = 15418^2 + 887^2 .

It is a cyclic number.

It is not a de Polignac number, because 238501493 - 2² = 238501489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238501499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119250746 + 119250747.

It is an arithmetic number, because the mean of its divisors is an integer number (119250747).

Almost surely, 2^238501493 is an apocalyptic number.

It is an amenable number.

238501493 is a deficient number, since it is larger than the sum of its proper divisors (1).

238501493 is an equidigital number, since it uses as much as digits as its factorization.

238501493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 238501493 is about 15443.4935490646. The cubic root of 238501493 is about 620.1504083580.

The spelling of 238501493 in words is "two hundred thirty-eight million, five hundred one thousand, four hundred ninety-three".