142141402 has 16 divisors (see below), whose sum is σ = 234954720. Its totient is φ = 64077552.

The previous prime is 142141399. The next prime is 142141409. The reversal of 142141402 is 204141241.

It is a self number, because there is not a number n which added to its sum of digits gives 142141402.

It is not an unprimeable number, because it can be changed into a prime (142141409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62452 + ... + 64687.

It is an arithmetic number, because the mean of its divisors is an integer number (14684670).

Almost surely, 2^142141402 is an apocalyptic number.

142141402 is a deficient number, since it is larger than the sum of its proper divisors (92813318).

142141402 is a wasteful number, since it uses less digits than its factorization.

142141402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127197.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 142141402 is about 11922.3069076417. The cubic root of 142141402 is about 521.8834582730.

Adding to 142141402 its reverse (204141241), we get a palindrome (346282643).

The spelling of 142141402 in words is "one hundred forty-two million, one hundred forty-one thousand, four hundred two".