146743505 has 8 divisors (see below), whose sum is σ = 178504872. Its totient is φ = 115786368.

The previous prime is 146743501. The next prime is 146743511. The reversal of 146743505 is 505347641.

It can be written as a sum of positive squares in 4 ways, for example, as 65869456 + 80874049 = 8116^2 + 8993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146743505 - 2² = 146743501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146743501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200654 + ... + 201383.

It is an arithmetic number, because the mean of its divisors is an integer number (22313109).

Almost surely, 2^146743505 is an apocalyptic number.

It is an amenable number.

146743505 is a deficient number, since it is larger than the sum of its proper divisors (31761367).

146743505 is an equidigital number, since it uses as much as digits as its factorization.

146743505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402115.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 146743505 is about 12113.7733592799. The cubic root of 146743505 is about 527.4560717520.

The spelling of 146743505 in words is "one hundred forty-six million, seven hundred forty-three thousand, five hundred five".