253154621 has 2 divisors, whose sum is σ = 253154622. Its totient is φ = 253154620.

The previous prime is 253154611. The next prime is 253154641. The reversal of 253154621 is 126451352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201242596 + 51912025 = 14186^2 + 7205^2 .

It is a cyclic number.

It is not a de Polignac number, because 253154621 - 2⁶ = 253154557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253154611) 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, 126577310 + 126577311.

It is an arithmetic number, because the mean of its divisors is an integer number (126577311).

Almost surely, 2^253154621 is an apocalyptic number.

It is an amenable number.

253154621 is a deficient number, since it is larger than the sum of its proper divisors (1).

253154621 is an equidigital number, since it uses as much as digits as its factorization.

253154621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 253154621 is about 15910.8334476859. The cubic root of 253154621 is about 632.5991728968.

The spelling of 253154621 in words is "two hundred fifty-three million, one hundred fifty-four thousand, six hundred twenty-one".