253668142 has 16 divisors (see below), whose sum is σ = 468310752. Its totient is φ = 100352160.

The previous prime is 253668119. The next prime is 253668251. The reversal of 253668142 is 241866352.

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 7 ways as a sum of consecutive naturals, for example, 696709 + ... + 697072.

It is an arithmetic number, because the mean of its divisors is an integer number (29269422).

Almost surely, 2^253668142 is an apocalyptic number.

253668142 is a deficient number, since it is larger than the sum of its proper divisors (214642610).

253668142 is a wasteful number, since it uses less digits than its factorization.

253668142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393803.

The product of its digits is 69120, while the sum is 37.

The square root of 253668142 is about 15926.9627361905. The cubic root of 253668142 is about 633.0266238520.

The spelling of 253668142 in words is "two hundred fifty-three million, six hundred sixty-eight thousand, one hundred forty-two".