142120854 has 12 divisors (see below), whose sum is σ = 307928556. Its totient is φ = 47373612.

The previous prime is 142120829. The next prime is 142120871. The reversal of 142120854 is 458021241.

142120854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3947784 + ... + 3947819.

It is an arithmetic number, because the mean of its divisors is an integer number (25660713).

Almost surely, 2^142120854 is an apocalyptic number.

142120854 is an abundant number, since it is smaller than the sum of its proper divisors (165807702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142120854 is a wasteful number, since it uses less digits than its factorization.

142120854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895611 (or 7895608 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 142120854 is about 11921.4451305200. The cubic root of 142120854 is about 521.8583091893.

The spelling of 142120854 in words is "one hundred forty-two million, one hundred twenty thousand, eight hundred fifty-four".