146342981 has 8 divisors (see below), whose sum is σ = 150476928. Its totient is φ = 142236000.

The previous prime is 146342947. The next prime is 146342983. The reversal of 146342981 is 189243641.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146342981 is a prime.

It is a super-2 number, since 2×146342981² = 42832536175932722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146342983) 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, 4526 + ... + 17696.

It is an arithmetic number, because the mean of its divisors is an integer number (18809616).

Almost surely, 2^146342981 is an apocalyptic number.

It is an amenable number.

146342981 is a deficient number, since it is larger than the sum of its proper divisors (4133947).

146342981 is a wasteful number, since it uses less digits than its factorization.

146342981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13483.

The product of its digits is 41472, while the sum is 38.

The square root of 146342981 is about 12097.2303028421. The cubic root of 146342981 is about 526.9757522266.

It can be divided in two parts, 1463 and 42981, that added together give a palindrome (44444).

The spelling of 146342981 in words is "one hundred forty-six million, three hundred forty-two thousand, nine hundred eighty-one".