146973523 has 4 divisors (see below), whose sum is σ = 147383280. Its totient is φ = 146563768.

The previous prime is 146973467. The next prime is 146973539. The reversal of 146973523 is 325379641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325379641 = 787 ⋅413443.

It is a cyclic number.

It is not a de Polignac number, because 146973523 - 2²⁵ = 113419091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146973023) 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, 204340 + ... + 205057.

It is an arithmetic number, because the mean of its divisors is an integer number (36845820).

Almost surely, 2^146973523 is an apocalyptic number.

146973523 is a deficient number, since it is larger than the sum of its proper divisors (409757).

146973523 is an equidigital number, since it uses as much as digits as its factorization.

146973523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409756.

The product of its digits is 136080, while the sum is 40.

The square root of 146973523 is about 12123.2637107340. The cubic root of 146973523 is about 527.7315207507.

The spelling of 146973523 in words is "one hundred forty-six million, nine hundred seventy-three thousand, five hundred twenty-three".