142555151 has 4 divisors (see below), whose sum is σ = 144971400. Its totient is φ = 140138904.

The previous prime is 142555111. The next prime is 142555159. The reversal of 142555151 is 151555241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142555151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142555159) 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, 1208036 + ... + 1208153.

It is an arithmetic number, because the mean of its divisors is an integer number (36242850).

Almost surely, 2^142555151 is an apocalyptic number.

142555151 is a deficient number, since it is larger than the sum of its proper divisors (2416249).

142555151 is an equidigital number, since it uses as much as digits as its factorization.

142555151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416248.

The product of its digits is 5000, while the sum is 29.

The square root of 142555151 is about 11939.6461840374. The cubic root of 142555151 is about 522.3893385296.

The spelling of 142555151 in words is "one hundred forty-two million, five hundred fifty-five thousand, one hundred fifty-one".