142977855250 has 16 divisors (see below), whose sum is σ = 267654545496. Its totient is φ = 57191142000.

The previous prime is 142977855221. The next prime is 142977855257. The reversal of 142977855250 is 52558779241.

It can be written as a sum of positive squares in 4 ways, for example, as 88304659921 + 54673195329 = 297161^2 + 233823^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142977855191 and 142977855200.

It is not an unprimeable number, because it can be changed into a prime (142977855257) 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, 285955461 + ... + 285955960.

Almost surely, 2^142977855250 is an apocalyptic number.

142977855250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142977855250 is a deficient number, since it is larger than the sum of its proper divisors (124676690246).

142977855250 is an equidigital number, since it uses as much as digits as its factorization.

142977855250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571911438 (or 571911428 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 55.

The spelling of 142977855250 in words is "one hundred forty-two billion, nine hundred seventy-seven million, eight hundred fifty-five thousand, two hundred fifty".