142031634 has 32 divisors (see below), whose sum is σ = 301371840. Its totient is φ = 44470272.

The previous prime is 142031581. The next prime is 142031639. The reversal of 142031634 is 436130241.

142031634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142031639) 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, 66162 + ... + 68274.

It is an arithmetic number, because the mean of its divisors is an integer number (9417870).

Almost surely, 2^142031634 is an apocalyptic number.

142031634 is an abundant number, since it is smaller than the sum of its proper divisors (159340206).

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

142031634 is a wasteful number, since it uses less digits than its factorization.

142031634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 142031634 is about 11917.7025470516. The cubic root of 142031634 is about 521.7490830306.

Adding to 142031634 its reverse (436130241), we get a palindrome (578161875).

The spelling of 142031634 in words is "one hundred forty-two million, thirty-one thousand, six hundred thirty-four".