146668547 has 4 divisors (see below), whose sum is σ = 148014240. Its totient is φ = 145322856.

The previous prime is 146668523. The next prime is 146668589. The reversal of 146668547 is 745866641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146668547 - 2²⁴ = 129891331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146668507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672683 + ... + 672900.

It is an arithmetic number, because the mean of its divisors is an integer number (37003560).

Almost surely, 2^146668547 is an apocalyptic number.

146668547 is a deficient number, since it is larger than the sum of its proper divisors (1345693).

146668547 is a wasteful number, since it uses less digits than its factorization.

146668547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345692.

The product of its digits is 967680, while the sum is 47.

The square root of 146668547 is about 12110.6790478486. The cubic root of 146668547 is about 527.3662465701.

The spelling of 146668547 in words is "one hundred forty-six million, six hundred sixty-eight thousand, five hundred forty-seven".