142124402 has 12 divisors (see below), whose sum is σ = 247992750. Its totient is φ = 60910416.

The previous prime is 142124401. The next prime is 142124419. The reversal of 142124402 is 204421241.

It can be written as a sum of positive squares in only one way, i.e., 142110241 + 14161 = 11921^2 + 119^2 .

It is not an unprimeable number, because it can be changed into a prime (142124401) 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 5 ways as a sum of consecutive naturals, for example, 725027 + ... + 725222.

Almost surely, 2^142124402 is an apocalyptic number.

142124402 is a deficient number, since it is larger than the sum of its proper divisors (105868348).

142124402 is a wasteful number, since it uses less digits than its factorization.

142124402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450265 (or 1450258 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 142124402 is about 11921.5939370539. The cubic root of 142124402 is about 521.8626518263.

Adding to 142124402 its reverse (204421241), we get a palindrome (346545643).

The spelling of 142124402 in words is "one hundred forty-two million, one hundred twenty-four thousand, four hundred two".