238402501 has 2 divisors, whose sum is σ = 238402502. Its totient is φ = 238402500.

The previous prime is 238402499. The next prime is 238402523. The reversal of 238402501 is 105204832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181037025 + 57365476 = 13455^2 + 7574^2 .

It is a cyclic number.

It is not a de Polignac number, because 238402501 - 2¹ = 238402499 is a prime.

Together with 238402499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238402531) 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, 119201250 + 119201251.

It is an arithmetic number, because the mean of its divisors is an integer number (119201251).

Almost surely, 2^238402501 is an apocalyptic number.

It is an amenable number.

238402501 is a deficient number, since it is larger than the sum of its proper divisors (1).

238402501 is an equidigital number, since it uses as much as digits as its factorization.

238402501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 238402501 is about 15440.2882421281. The cubic root of 238402501 is about 620.0645969809.

The spelling of 238402501 in words is "two hundred thirty-eight million, four hundred two thousand, five hundred one".