156140142 has 16 divisors (see below), whose sum is σ = 315373392. Its totient is φ = 51531200.

The previous prime is 156140141. The next prime is 156140143. The reversal of 156140142 is 241041651.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (156140141) and next prime (156140143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156140141) 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 7 ways as a sum of consecutive naturals, for example, 128223 + ... + 129434.

It is an arithmetic number, because the mean of its divisors is an integer number (19710837).

Almost surely, 2^156140142 is an apocalyptic number.

156140142 is an abundant number, since it is smaller than the sum of its proper divisors (159233250).

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

156140142 is a wasteful number, since it uses less digits than its factorization.

156140142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257763.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 156140142 is about 12495.6049073264. The cubic root of 156140142 is about 538.4824125733.

Adding to 156140142 its reverse (241041651), we get a palindrome (397181793).

The spelling of 156140142 in words is "one hundred fifty-six million, one hundred forty thousand, one hundred forty-two".