146004746521 has 4 divisors (see below), whose sum is σ = 146008277712. Its totient is φ = 146001215332.

The previous prime is 146004746509. The next prime is 146004746609. The reversal of 146004746521 is 125647400641.

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.

It is a cyclic number.

It is not a de Polignac number, because 146004746521 - 2¹⁹ = 146004222233 is a prime.

It is a super-2 number, since 2×146004746521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146004746021) 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, 1702831 + ... + 1786516.

It is an arithmetic number, because the mean of its divisors is an integer number (36502069428).

Almost surely, 2^146004746521 is an apocalyptic number.

It is an amenable number.

146004746521 is a deficient number, since it is larger than the sum of its proper divisors (3531191).

146004746521 is an equidigital number, since it uses as much as digits as its factorization.

146004746521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531190.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 146004746521 in words is "one hundred forty-six billion, four million, seven hundred forty-six thousand, five hundred twenty-one".