253785142 has 8 divisors (see below), whose sum is σ = 409960656. Its totient is φ = 117131592.

The previous prime is 253785139. The next prime is 253785143. The reversal of 253785142 is 241587352.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253785143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4880458 + ... + 4880509.

It is an arithmetic number, because the mean of its divisors is an integer number (51245082).

Almost surely, 2^253785142 is an apocalyptic number.

253785142 is a deficient number, since it is larger than the sum of its proper divisors (156175514).

253785142 is a wasteful number, since it uses less digits than its factorization.

253785142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9760982.

The product of its digits is 67200, while the sum is 37.

The square root of 253785142 is about 15930.6353294525. The cubic root of 253785142 is about 633.1239330508.

The spelling of 253785142 in words is "two hundred fifty-three million, seven hundred eighty-five thousand, one hundred forty-two".