146745917 has 4 divisors (see below), whose sum is σ = 147155040. Its totient is φ = 146336796.

The previous prime is 146745883. The next prime is 146745947. The reversal of 146745917 is 719547641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 719547641 = 73 ⋅9856817.

It is a cyclic number.

It is not a de Polignac number, because 146745917 - 2¹⁰ = 146744893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146745947) 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, 204023 + ... + 204740.

It is an arithmetic number, because the mean of its divisors is an integer number (36788760).

Almost surely, 2^146745917 is an apocalyptic number.

It is an amenable number.

146745917 is a deficient number, since it is larger than the sum of its proper divisors (409123).

146745917 is an equidigital number, since it uses as much as digits as its factorization.

146745917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409122.

The product of its digits is 211680, while the sum is 44.

The square root of 146745917 is about 12113.8729149682. The cubic root of 146745917 is about 527.4589616405.

The spelling of 146745917 in words is "one hundred forty-six million, seven hundred forty-five thousand, nine hundred seventeen".