253871542 has 4 divisors (see below), whose sum is σ = 380807316. Its totient is φ = 126935770.

The previous prime is 253871531. The next prime is 253871543. The reversal of 253871542 is 245178352.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253871543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63467884 + ... + 63467887.

It is an arithmetic number, because the mean of its divisors is an integer number (95201829).

Almost surely, 2^253871542 is an apocalyptic number.

253871542 is a deficient number, since it is larger than the sum of its proper divisors (126935774).

253871542 is a wasteful number, since it uses less digits than its factorization.

253871542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126935773.

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

The square root of 253871542 is about 15933.3468549454. The cubic root of 253871542 is about 633.1957729556.

The spelling of 253871542 in words is "two hundred fifty-three million, eight hundred seventy-one thousand, five hundred forty-two".