142971926 has 4 divisors (see below), whose sum is σ = 214457892. Its totient is φ = 71485962.

The previous prime is 142971923. The next prime is 142971937. The reversal of 142971926 is 629179241.

142971926 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: 629179241 = 18121 ⋅34721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142971923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35742980 + ... + 35742983.

It is an arithmetic number, because the mean of its divisors is an integer number (53614473).

Almost surely, 2^142971926 is an apocalyptic number.

142971926 is a deficient number, since it is larger than the sum of its proper divisors (71485966).

142971926 is an equidigital number, since it uses as much as digits as its factorization.

142971926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71485965.

The product of its digits is 54432, while the sum is 41.

The square root of 142971926 is about 11957.0868525741. The cubic root of 142971926 is about 522.8979299633.

The spelling of 142971926 in words is "one hundred forty-two million, nine hundred seventy-one thousand, nine hundred twenty-six".