142872151 has 4 divisors (see below), whose sum is σ = 145912032. Its totient is φ = 139832272.

The previous prime is 142872143. The next prime is 142872157. The reversal of 142872151 is 151278241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151278241 = 307 ⋅492763.

It is a cyclic number.

It is not a de Polignac number, because 142872151 - 2³ = 142872143 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 (142872157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519870 + ... + 1519963.

It is an arithmetic number, because the mean of its divisors is an integer number (36478008).

Almost surely, 2^142872151 is an apocalyptic number.

142872151 is a deficient number, since it is larger than the sum of its proper divisors (3039881).

142872151 is an equidigital number, since it uses as much as digits as its factorization.

142872151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039880.

The product of its digits is 4480, while the sum is 31.

The square root of 142872151 is about 11952.9139125152. The cubic root of 142872151 is about 522.7762643946.

The spelling of 142872151 in words is "one hundred forty-two million, eight hundred seventy-two thousand, one hundred fifty-one".