142142051 has 4 divisors (see below), whose sum is σ = 142173504. Its totient is φ = 142110600.

The previous prime is 142142029. The next prime is 142142089. The reversal of 142142051 is 150241241.

It is a happy number.

142142051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142142051 - 2¹⁴ = 142125667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142142851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7520 + ... + 18461.

It is an arithmetic number, because the mean of its divisors is an integer number (35543376).

Almost surely, 2^142142051 is an apocalyptic number.

142142051 is a deficient number, since it is larger than the sum of its proper divisors (31453).

142142051 is an equidigital number, since it uses as much as digits as its factorization.

142142051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31452.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 142142051 is about 11922.3341254974. The cubic root of 142142051 is about 521.8842525569.

Adding to 142142051 its reverse (150241241), we get a palindrome (292383292).

The spelling of 142142051 in words is "one hundred forty-two million, one hundred forty-two thousand, fifty-one".