142744877 has 16 divisors (see below), whose sum is σ = 163963008. Its totient is φ = 123002880.

The previous prime is 142744841. The next prime is 142744879. The reversal of 142744877 is 778447241.

It is not a de Polignac number, because 142744877 - 2⁶ = 142744813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142744879) 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 15 ways as a sum of consecutive naturals, for example, 26093 + ... + 31085.

It is an arithmetic number, because the mean of its divisors is an integer number (10247688).

Almost surely, 2^142744877 is an apocalyptic number.

It is an amenable number.

142744877 is a deficient number, since it is larger than the sum of its proper divisors (21218131).

142744877 is a wasteful number, since it uses less digits than its factorization.

142744877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140.

The product of its digits is 351232, while the sum is 44.

The square root of 142744877 is about 11947.5887525475. The cubic root of 142744877 is about 522.6209843235.

The spelling of 142744877 in words is "one hundred forty-two million, seven hundred forty-four thousand, eight hundred seventy-seven".