142993764 has 27 divisors (see below), whose sum is σ = 361637913. Its totient is φ = 47640672.

The previous prime is 142993759. The next prime is 142993769. The reversal of 142993764 is 467399241.

It is a happy number.

The square root of 142993764 is 11958.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (142993759) and next prime (142993769).

It can be written as a sum of positive squares in only one way, i.e., 104652900 + 38340864 = 10230^2 + 6192^2 .

It is not an unprimeable number, because it can be changed into a prime (142993769) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 70752 + ... + 72744.

Almost surely, 2^142993764 is an apocalyptic number.

142993764 is the 11958-th square number.

It is an amenable number.

142993764 is an abundant number, since it is smaller than the sum of its proper divisors (218644149).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142993764 is an equidigital number, since it uses as much as digits as its factorization.

142993764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996 (or 1998 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The cubic root of 142993764 is about 522.9245516551.

The spelling of 142993764 in words is "one hundred forty-two million, nine hundred ninety-three thousand, seven hundred sixty-four".