3745583121 has 16 divisors (see below), whose sum is σ = 5708509184. Its totient is φ = 2139975504.

The previous prime is 3745583117. The next prime is 3745583129. The reversal of 3745583121 is 1213855473.

It is a happy number.

It is not a de Polignac number, because 3745583121 - 2² = 3745583117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3745583121.

It is not an unprimeable number, because it can be changed into a prime (3745583129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163266 + ... + 184788.

It is an arithmetic number, because the mean of its divisors is an integer number (356781824).

Almost surely, 2^3745583121 is an apocalyptic number.

It is an amenable number.

3745583121 is a deficient number, since it is larger than the sum of its proper divisors (1962926063).

3745583121 is a wasteful number, since it uses less digits than its factorization.

3745583121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29820.

The product of its digits is 100800, while the sum is 39.

The square root of 3745583121 is about 61201.1692780457. The cubic root of 3745583121 is about 1553.0060457841.

The spelling of 3745583121 in words is "three billion, seven hundred forty-five million, five hundred eighty-three thousand, one hundred twenty-one".