142215298 has 4 divisors (see below), whose sum is σ = 213322950. Its totient is φ = 71107648.

The previous prime is 142215287. The next prime is 142215301. The reversal of 142215298 is 892512241.

142215298 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 892512241 = 14753 ⋅60497.

It can be written as a sum of positive squares in only one way, i.e., 72709729 + 69505569 = 8527^2 + 8337^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35553823 + ... + 35553826.

Almost surely, 2^142215298 is an apocalyptic number.

142215298 is a deficient number, since it is larger than the sum of its proper divisors (71107652).

142215298 is an equidigital number, since it uses as much as digits as its factorization.

142215298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71107651.

The product of its digits is 11520, while the sum is 34.

The square root of 142215298 is about 11925.4055696232. The cubic root of 142215298 is about 521.9738809516.

The spelling of 142215298 in words is "one hundred forty-two million, two hundred fifteen thousand, two hundred ninety-eight".