142150451 has 4 divisors (see below), whose sum is σ = 142175112. Its totient is φ = 142125792.

The previous prime is 142150441. The next prime is 142150453. The reversal of 142150451 is 154051241.

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-142150451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142150453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451 + ... + 16923.

It is an arithmetic number, because the mean of its divisors is an integer number (35543778).

Almost surely, 2^142150451 is an apocalyptic number.

142150451 is a deficient number, since it is larger than the sum of its proper divisors (24661).

142150451 is an equidigital number, since it uses as much as digits as its factorization.

142150451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24660.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 142150451 is about 11922.6864003043. The cubic root of 142150451 is about 521.8945327457.

The spelling of 142150451 in words is "one hundred forty-two million, one hundred fifty thousand, four hundred fifty-one".