142654638 has 32 divisors (see below), whose sum is σ = 326430720. Its totient is φ = 40713120.

The previous prime is 142654627. The next prime is 142654639. The reversal of 142654638 is 836456241.

It is a super-2 number, since 2×142654638² = 40700691485822088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 142654596 and 142654605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142654639) 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, 60628 + ... + 62936.

It is an arithmetic number, because the mean of its divisors is an integer number (10200960).

Almost surely, 2^142654638 is an apocalyptic number.

142654638 is an abundant number, since it is smaller than the sum of its proper divisors (183776082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142654638 is a wasteful number, since it uses less digits than its factorization.

142654638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792.

The product of its digits is 138240, while the sum is 39.

The square root of 142654638 is about 11943.8117031373. The cubic root of 142654638 is about 522.5108327081.

The spelling of 142654638 in words is "one hundred forty-two million, six hundred fifty-four thousand, six hundred thirty-eight".