142155122 has 16 divisors (see below), whose sum is σ = 226527840. Its totient is φ = 66673728.

The previous prime is 142155121. The next prime is 142155127. The reversal of 142155122 is 221551241.

142155122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142155121) 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, 3629 + ... + 17247.

It is an arithmetic number, because the mean of its divisors is an integer number (14157990).

Almost surely, 2^142155122 is an apocalyptic number.

142155122 is a deficient number, since it is larger than the sum of its proper divisors (84372718).

142155122 is a wasteful number, since it uses less digits than its factorization.

142155122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13945.

The product of its digits is 800, while the sum is 23.

The square root of 142155122 is about 11922.8822857562. The cubic root of 142155122 is about 521.9002490897.

The spelling of 142155122 in words is "one hundred forty-two million, one hundred fifty-five thousand, one hundred twenty-two".