142187402 has 16 divisors (see below), whose sum is σ = 244128192. Its totient is φ = 60842880.

The previous prime is 142187399. The next prime is 142187443. The reversal of 142187402 is 204781241.

142187402 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877 + ... + 16967.

It is an arithmetic number, because the mean of its divisors is an integer number (15258012).

Almost surely, 2^142187402 is an apocalyptic number.

142187402 is a deficient number, since it is larger than the sum of its proper divisors (101940790).

142187402 is a wasteful number, since it uses less digits than its factorization.

142187402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15773.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 142187402 is about 11924.2359084346. The cubic root of 142187402 is about 521.9397497535.

The spelling of 142187402 in words is "one hundred forty-two million, one hundred eighty-seven thousand, four hundred two".