142776157 has 8 divisors (see below), whose sum is σ = 150353280. Its totient is φ = 135313200.

The previous prime is 142776113. The next prime is 142776167. The reversal of 142776157 is 751677241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142776157 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 (142776167) 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 7 ways as a sum of consecutive naturals, for example, 25969 + ... + 30982.

It is an arithmetic number, because the mean of its divisors is an integer number (18794160).

Almost surely, 2^142776157 is an apocalyptic number.

It is an amenable number.

142776157 is a deficient number, since it is larger than the sum of its proper divisors (7577123).

142776157 is a wasteful number, since it uses less digits than its factorization.

142776157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57083.

The product of its digits is 82320, while the sum is 40.

The square root of 142776157 is about 11948.8977315901. The cubic root of 142776157 is about 522.6591558988.

The spelling of 142776157 in words is "one hundred forty-two million, seven hundred seventy-six thousand, one hundred fifty-seven".