142155542 has 8 divisors (see below), whose sum is σ = 217770336. Its totient is φ = 69565432.

The previous prime is 142155539. The next prime is 142155557. The reversal of 142155542 is 245551241.

142155542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756053 + ... + 756240.

It is an arithmetic number, because the mean of its divisors is an integer number (27221292).

Almost surely, 2^142155542 is an apocalyptic number.

142155542 is a deficient number, since it is larger than the sum of its proper divisors (75614794).

142155542 is a wasteful number, since it uses less digits than its factorization.

142155542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512342.

The product of its digits is 8000, while the sum is 29.

The square root of 142155542 is about 11922.8998989340. The cubic root of 142155542 is about 521.9007630773.

The spelling of 142155542 in words is "one hundred forty-two million, one hundred fifty-five thousand, five hundred forty-two".