146847681 has 16 divisors (see below), whose sum is σ = 219481920. Its totient is φ = 97030080.

The previous prime is 146847671. The next prime is 146847689. The reversal of 146847681 is 186748641.

It is not a de Polignac number, because 146847681 - 2⁷ = 146847553 is a prime.

It is a super-2 number, since 2×146847681² = 43128482830155522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146847689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21015 + ... + 27116.

It is an arithmetic number, because the mean of its divisors is an integer number (13717620).

Almost surely, 2^146847681 is an apocalyptic number.

It is an amenable number.

146847681 is a deficient number, since it is larger than the sum of its proper divisors (72634239).

146847681 is a wasteful number, since it uses less digits than its factorization.

146847681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48253 (or 48247 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 146847681 is about 12118.0724952444. The cubic root of 146847681 is about 527.5808592532.

The spelling of 146847681 in words is "one hundred forty-six million, eight hundred forty-seven thousand, six hundred eighty-one".