253109029 has 2 divisors, whose sum is σ = 253109030. Its totient is φ = 253109028.

The previous prime is 253109023. The next prime is 253109033. The reversal of 253109029 is 920901352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150552900 + 102556129 = 12270^2 + 10127^2 .

It is a cyclic number.

It is not a de Polignac number, because 253109029 - 2⁷ = 253108901 is a prime.

It is a super-2 number, since 2×253109029² = 128128361122645682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253109023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126554514 + 126554515.

It is an arithmetic number, because the mean of its divisors is an integer number (126554515).

Almost surely, 2^253109029 is an apocalyptic number.

It is an amenable number.

253109029 is a deficient number, since it is larger than the sum of its proper divisors (1).

253109029 is an equidigital number, since it uses as much as digits as its factorization.

253109029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 253109029 is about 15909.4006486731. The cubic root of 253109029 is about 632.5611945354.

The spelling of 253109029 in words is "two hundred fifty-three million, one hundred nine thousand, twenty-nine".