142968481 has 8 divisors (see below), whose sum is σ = 146988864. Its totient is φ = 138956400.

The previous prime is 142968479. The next prime is 142968493. The reversal of 142968481 is 184869241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142968481 - 2¹ = 142968479 is a prime.

It is a super-2 number, since 2×142968481² = 40879973118894722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142968451) 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, 52356 + ... + 55018.

It is an arithmetic number, because the mean of its divisors is an integer number (18373608).

Almost surely, 2^142968481 is an apocalyptic number.

It is an amenable number.

142968481 is a deficient number, since it is larger than the sum of its proper divisors (4020383).

142968481 is a wasteful number, since it uses less digits than its factorization.

142968481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151.

The product of its digits is 110592, while the sum is 43.

The square root of 142968481 is about 11956.9427948786. The cubic root of 142968481 is about 522.8937300762.

The spelling of 142968481 in words is "one hundred forty-two million, nine hundred sixty-eight thousand, four hundred eighty-one".