253890139 has 2 divisors, whose sum is σ = 253890140. Its totient is φ = 253890138.

The previous prime is 253890089. The next prime is 253890151. The reversal of 253890139 is 931098352.

253890139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253890139 - 2⁹ = 253889627 is a prime.

It is not a weakly prime, because it can be changed into another prime (253890739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126945069 + 126945070.

It is an arithmetic number, because the mean of its divisors is an integer number (126945070).

Almost surely, 2^253890139 is an apocalyptic number.

253890139 is a deficient number, since it is larger than the sum of its proper divisors (1).

253890139 is an equidigital number, since it uses as much as digits as its factorization.

253890139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 253890139 is about 15933.9304316292. The cubic root of 253890139 is about 633.2112338644.

The spelling of 253890139 in words is "two hundred fifty-three million, eight hundred ninety thousand, one hundred thirty-nine".