3731545 has 4 divisors (see below), whose sum is σ = 4477860. Its totient is φ = 2985232.

The previous prime is 3731531. The next prime is 3731549. The reversal of 3731545 is 5451373.

3731545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5451373 = 17 ⋅320669.

It can be written as a sum of positive squares in 2 ways, for example, as 2322576 + 1408969 = 1524^2 + 1187^2 .

It is a cyclic number.

It is not a de Polignac number, because 3731545 - 2⁵ = 3731513 is a prime.

3731545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3731549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373150 + ... + 373159.

It is an arithmetic number, because the mean of its divisors is an integer number (1119465).

Almost surely, 2^3731545 is an apocalyptic number.

It is an amenable number.

3731545 is a deficient number, since it is larger than the sum of its proper divisors (746315).

3731545 is an equidigital number, since it uses as much as digits as its factorization.

3731545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746314.

The product of its digits is 6300, while the sum is 28.

The square root of 3731545 is about 1931.7207355102. The cubic root of 3731545 is about 155.1063439486.

The spelling of 3731545 in words is "three million, seven hundred thirty-one thousand, five hundred forty-five".