142923698 has 4 divisors (see below), whose sum is σ = 214385550. Its totient is φ = 71461848.

The previous prime is 142923691. The next prime is 142923721. The reversal of 142923698 is 896329241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 137757169 + 5166529 = 11737^2 + 2273^2 .

It is not an unprimeable number, because it can be changed into a prime (142923691) 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 as a sum of consecutive naturals, namely, 35730923 + ... + 35730926.

Almost surely, 2^142923698 is an apocalyptic number.

142923698 is a deficient number, since it is larger than the sum of its proper divisors (71461852).

142923698 is an equidigital number, since it uses as much as digits as its factorization.

142923698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71461851.

The product of its digits is 186624, while the sum is 44.

The square root of 142923698 is about 11955.0699705188. The cubic root of 142923698 is about 522.8391278422.

The spelling of 142923698 in words is "one hundred forty-two million, nine hundred twenty-three thousand, six hundred ninety-eight".