142051115 has 4 divisors (see below), whose sum is σ = 170461344. Its totient is φ = 113640888.

The previous prime is 142051081. The next prime is 142051123. The reversal of 142051115 is 511150241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511150241 = 7 ⋅73021463.

It is a cyclic number.

It is not a de Polignac number, because 142051115 - 2¹⁶ = 141985579 is a prime.

It is a Duffinian 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, 14205107 + ... + 14205116.

It is an arithmetic number, because the mean of its divisors is an integer number (42615336).

Almost surely, 2^142051115 is an apocalyptic number.

142051115 is a deficient number, since it is larger than the sum of its proper divisors (28410229).

142051115 is an equidigital number, since it uses as much as digits as its factorization.

142051115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28410228.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 142051115 is about 11918.5198325967. The cubic root of 142051115 is about 521.7729362360.

The spelling of 142051115 in words is "one hundred forty-two million, fifty-one thousand, one hundred fifteen".