142001976 has 32 divisors (see below), whose sum is σ = 355389840. Its totient is φ = 47282688.

The previous prime is 142001971. The next prime is 142001987. The reversal of 142001976 is 679100241.

It is a happy number.

142001976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142001976² = 40329122375809152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142001971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24160 + ... + 29456.

Almost surely, 2^142001976 is an apocalyptic number.

It is an amenable number.

142001976 is an abundant number, since it is smaller than the sum of its proper divisors (213387864).

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

142001976 is a wasteful number, since it uses less digits than its factorization.

142001976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423 (or 6419 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 142001976 is about 11916.4581986427. The cubic root of 142001976 is about 521.7127645686.

The spelling of 142001976 in words is "one hundred forty-two million, one thousand, nine hundred seventy-six".