253351906 has 8 divisors (see below), whose sum is σ = 380931804. Its totient is φ = 126374640.

The previous prime is 253351897. The next prime is 253351907. The reversal of 253351906 is 609153352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 246772681 + 6579225 = 15709^2 + 2565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (253351907) 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 in 3 ways as a sum of consecutive naturals, for example, 149605 + ... + 151288.

Almost surely, 2^253351906 is an apocalyptic number.

253351906 is a deficient number, since it is larger than the sum of its proper divisors (127579898).

253351906 is a wasteful number, since it uses less digits than its factorization.

253351906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301316.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 253351906 is about 15917.0319469429. The cubic root of 253351906 is about 632.7634597420.

The spelling of 253351906 in words is "two hundred fifty-three million, three hundred fifty-one thousand, nine hundred six".