374587561 has 4 divisors (see below), whose sum is σ = 378796500. Its totient is φ = 370378624.

The previous prime is 374587559. The next prime is 374587567. The reversal of 374587561 is 165785473.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188101225 + 186486336 = 13715^2 + 13656^2 .

It is a cyclic number.

It is not a de Polignac number, because 374587561 - 2¹ = 374587559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (374587567) 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 3 ways as a sum of consecutive naturals, for example, 2104336 + ... + 2104513.

It is an arithmetic number, because the mean of its divisors is an integer number (94699125).

Almost surely, 2^374587561 is an apocalyptic number.

It is an amenable number.

374587561 is a deficient number, since it is larger than the sum of its proper divisors (4208939).

374587561 is an equidigital number, since it uses as much as digits as its factorization.

374587561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208938.

The product of its digits is 705600, while the sum is 46.

The square root of 374587561 is about 19354.2646721595. The cubic root of 374587561 is about 720.8603148517.

The spelling of 374587561 in words is "three hundred seventy-four million, five hundred eighty-seven thousand, five hundred sixty-one".