142425381 has 16 divisors (see below), whose sum is σ = 217497600. Its totient is φ = 81210288.

The previous prime is 142425379. The next prime is 142425397. The reversal of 142425381 is 183524241.

It is not a de Polignac number, because 142425381 - 2¹ = 142425379 is a prime.

It is a super-2 number, since 2×142425381² = 40569978305990322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142425341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2980 + ... + 17138.

It is an arithmetic number, because the mean of its divisors is an integer number (13593600).

Almost surely, 2^142425381 is an apocalyptic number.

It is an amenable number.

142425381 is a deficient number, since it is larger than the sum of its proper divisors (75072219).

142425381 is a wasteful number, since it uses less digits than its factorization.

142425381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14648.

The product of its digits is 7680, while the sum is 30.

The square root of 142425381 is about 11934.2105310741. The cubic root of 142425381 is about 522.2307775689.

The spelling of 142425381 in words is "one hundred forty-two million, four hundred twenty-five thousand, three hundred eighty-one".