142215154420402 has 32 divisors (see below), whose sum is σ = 244223591189760. Its totient is φ = 60842868387840.

The previous prime is 142215154420373. The next prime is 142215154420463. The reversal of 142215154420402 is 204024451512241.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24770502 + ... + 29966782.

It is an arithmetic number, because the mean of its divisors is an integer number (7631987224680).

Almost surely, 2^{142215154420402} is an apocalyptic number.

142215154420402 is a deficient number, since it is larger than the sum of its proper divisors (102008436769358).

142215154420402 is a wasteful number, since it uses less digits than its factorization.

142215154420402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199706.

The product of its (nonzero) digits is 102400, while the sum is 37.

The spelling of 142215154420402 in words is "one hundred forty-two trillion, two hundred fifteen billion, one hundred fifty-four million, four hundred twenty thousand, four hundred two".