146754721 has 4 divisors (see below), whose sum is σ = 149523732. Its totient is φ = 143985712.

The previous prime is 146754679. The next prime is 146754731. The reversal of 146754721 is 127457641.

146754721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 102718225 + 44036496 = 10135^2 + 6636^2 .

It is a cyclic number.

It is not a de Polignac number, because 146754721 - 2¹⁷ = 146623649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146754731) 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, 1384426 + ... + 1384531.

It is an arithmetic number, because the mean of its divisors is an integer number (37380933).

Almost surely, 2^146754721 is an apocalyptic number.

It is an amenable number.

146754721 is a deficient number, since it is larger than the sum of its proper divisors (2769011).

146754721 is an equidigital number, since it uses as much as digits as its factorization.

146754721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769010.

The product of its digits is 47040, while the sum is 37.

The square root of 146754721 is about 12114.2362945421. The cubic root of 146754721 is about 527.4695097041.

The spelling of 146754721 in words is "one hundred forty-six million, seven hundred fifty-four thousand, seven hundred twenty-one".