146742517 has 4 divisors (see below), whose sum is σ = 146836800. Its totient is φ = 146648236.

The previous prime is 146742511. The next prime is 146742527. The reversal of 146742517 is 715247641.

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: 715247641 = 1193 ⋅599537.

It is a cyclic number.

It is not a de Polignac number, because 146742517 - 2⁷ = 146742389 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 (146742511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44767 + ... + 47932.

It is an arithmetic number, because the mean of its divisors is an integer number (36709200).

Almost surely, 2^146742517 is an apocalyptic number.

It is an amenable number.

146742517 is a deficient number, since it is larger than the sum of its proper divisors (94283).

146742517 is an equidigital number, since it uses as much as digits as its factorization.

146742517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94282.

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

The square root of 146742517 is about 12113.7325791847. The cubic root of 146742517 is about 527.4548879909.

The spelling of 146742517 in words is "one hundred forty-six million, seven hundred forty-two thousand, five hundred seventeen".