142776213 has 8 divisors (see below), whose sum is σ = 191738400. Its totient is φ = 94499088.

The previous prime is 142776197. The next prime is 142776259. The reversal of 142776213 is 312677241.

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

It is not a de Polignac number, because 142776213 - 2⁴ = 142776197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142776113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170778 + ... + 171611.

It is an arithmetic number, because the mean of its divisors is an integer number (23967300).

Almost surely, 2^142776213 is an apocalyptic number.

It is an amenable number.

142776213 is a deficient number, since it is larger than the sum of its proper divisors (48962187).

142776213 is a wasteful number, since it uses less digits than its factorization.

142776213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342531.

The product of its digits is 14112, while the sum is 33.

The square root of 142776213 is about 11948.9000749023. The cubic root of 142776213 is about 522.6592242316.

The spelling of 142776213 in words is "one hundred forty-two million, seven hundred seventy-six thousand, two hundred thirteen".