142120858 has 8 divisors (see below), whose sum is σ = 232561440. Its totient is φ = 64600380.

The previous prime is 142120829. The next prime is 142120871. The reversal of 142120858 is 858021241.

142120858 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3229998 + ... + 3230041.

It is an arithmetic number, because the mean of its divisors is an integer number (29070180).

Almost surely, 2^142120858 is an apocalyptic number.

142120858 is a deficient number, since it is larger than the sum of its proper divisors (90440582).

142120858 is a wasteful number, since it uses less digits than its factorization.

142120858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6460052.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 142120858 is about 11921.4452982849. The cubic root of 142120858 is about 521.8583140852.

The spelling of 142120858 in words is "one hundred forty-two million, one hundred twenty thousand, eight hundred fifty-eight".