146523445 has 4 divisors (see below), whose sum is σ = 175828140. Its totient is φ = 117218752.

The previous prime is 146523413. The next prime is 146523473. The reversal of 146523445 is 544325641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544325641 = 1873 ⋅290617.

It can be written as a sum of positive squares in 2 ways, for example, as 41809156 + 104714289 = 6466^2 + 10233^2 .

It is a cyclic number.

It is not a de Polignac number, because 146523445 - 2⁵ = 146523413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146523445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14652340 + ... + 14652349.

It is an arithmetic number, because the mean of its divisors is an integer number (43957035).

Almost surely, 2^146523445 is an apocalyptic number.

It is an amenable number.

146523445 is a deficient number, since it is larger than the sum of its proper divisors (29304695).

146523445 is an equidigital number, since it uses as much as digits as its factorization.

146523445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29304694.

The product of its digits is 57600, while the sum is 34.

The square root of 146523445 is about 12104.6869021879. The cubic root of 146523445 is about 527.1922780144.

The spelling of 146523445 in words is "one hundred forty-six million, five hundred twenty-three thousand, four hundred forty-five".