253129406 has 8 divisors (see below), whose sum is σ = 379796040. Its totient is φ = 126530728.

The previous prime is 253129397. The next prime is 253129427. The reversal of 253129406 is 604921352.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 6341 + ... + 23376.

It is an arithmetic number, because the mean of its divisors is an integer number (47474505).

Almost surely, 2^253129406 is an apocalyptic number.

253129406 is a deficient number, since it is larger than the sum of its proper divisors (126666634).

253129406 is a wasteful number, since it uses less digits than its factorization.

253129406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33978.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 253129406 is about 15910.0410433160. The cubic root of 253129406 is about 632.5781692408.

The spelling of 253129406 in words is "two hundred fifty-three million, one hundred twenty-nine thousand, four hundred six".