253723451 has 2 divisors, whose sum is σ = 253723452. Its totient is φ = 253723450.

The previous prime is 253723427. The next prime is 253723471. The reversal of 253723451 is 154327352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253723451 - 2¹⁴ = 253707067 is a prime.

It is a Sophie Germain prime.

It is equal to p_13871732 and since 253723451 and 13871732 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (253723411) 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, 126861725 + 126861726.

It is an arithmetic number, because the mean of its divisors is an integer number (126861726).

Almost surely, 2^253723451 is an apocalyptic number.

253723451 is a deficient number, since it is larger than the sum of its proper divisors (1).

253723451 is an equidigital number, since it uses as much as digits as its factorization.

253723451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 32.

The square root of 253723451 is about 15928.6989738648. The cubic root of 253723451 is about 633.0726282168.

The spelling of 253723451 in words is "two hundred fifty-three million, seven hundred twenty-three thousand, four hundred fifty-one".