142993654 has 4 divisors (see below), whose sum is σ = 214490484. Its totient is φ = 71496826.

The previous prime is 142993651. The next prime is 142993667. The reversal of 142993654 is 456399241.

142993654 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 142993654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142993651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35748412 + ... + 35748415.

It is an arithmetic number, because the mean of its divisors is an integer number (53622621).

Almost surely, 2^142993654 is an apocalyptic number.

142993654 is a deficient number, since it is larger than the sum of its proper divisors (71496830).

142993654 is an equidigital number, since it uses as much as digits as its factorization.

142993654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71496829.

The product of its digits is 233280, while the sum is 43.

The square root of 142993654 is about 11957.9954005678. The cubic root of 142993654 is about 522.9244175660.

The spelling of 142993654 in words is "one hundred forty-two million, nine hundred ninety-three thousand, six hundred fifty-four".