142340157 has 24 divisors (see below), whose sum is σ = 208579800. Its totient is φ = 93529728.

The previous prime is 142340141. The next prime is 142340171. The reversal of 142340157 is 751043241.

It can be written as a sum of positive squares in 4 ways, for example, as 19263321 + 123076836 = 4389^2 + 11094^2 .

It is not a de Polignac number, because 142340157 - 2⁴ = 142340141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142340157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142340117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365719 + ... + 366107.

It is an arithmetic number, because the mean of its divisors is an integer number (8690825).

Almost surely, 2^142340157 is an apocalyptic number.

It is an amenable number.

142340157 is a deficient number, since it is larger than the sum of its proper divisors (66239643).

142340157 is a wasteful number, since it uses less digits than its factorization.

142340157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 142340157 is about 11930.6394212548. The cubic root of 142340157 is about 522.1265932452.

Adding to 142340157 its reverse (751043241), we get a palindrome (893383398).

The spelling of 142340157 in words is "one hundred forty-two million, three hundred forty thousand, one hundred fifty-seven".