142974794 has 16 divisors (see below), whose sum is σ = 227577600. Its totient is φ = 67134144.

The previous prime is 142974779. The next prime is 142974809. The reversal of 142974794 is 497479241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142974779) and next prime (142974809).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11897 + ... + 20675.

It is an arithmetic number, because the mean of its divisors is an integer number (14223600).

Almost surely, 2^142974794 is an apocalyptic number.

142974794 is a deficient number, since it is larger than the sum of its proper divisors (84602806).

142974794 is a wasteful number, since it uses less digits than its factorization.

142974794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9277.

The product of its digits is 508032, while the sum is 47.

The square root of 142974794 is about 11957.2067808498. The cubic root of 142974794 is about 522.9014263635.

It can be divided in two parts, 14297 and 4794, that added together give a palindrome (19091).

The spelling of 142974794 in words is "one hundred forty-two million, nine hundred seventy-four thousand, seven hundred ninety-four".