3725541 has 8 divisors (see below), whose sum is σ = 5519360. Its totient is φ = 2483676.

The previous prime is 3725521. The next prime is 3725551. The reversal of 3725541 is 1455273.

It is a happy number.

It is not a de Polignac number, because 3725541 - 2⁷ = 3725413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 137983 = 3725541 / (3 + 7 + 2 + 5 + 5 + 4 + 1).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3725521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68965 + ... + 69018.

It is an arithmetic number, because the mean of its divisors is an integer number (689920).

Almost surely, 2^3725541 is an apocalyptic number.

It is an amenable number.

3725541 is a deficient number, since it is larger than the sum of its proper divisors (1793819).

3725541 is a wasteful number, since it uses less digits than its factorization.

3725541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137992 (or 137986 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 3725541 is about 1930.1660550326. The cubic root of 3725541 is about 155.0231113648.

The spelling of 3725541 in words is "three million, seven hundred twenty-five thousand, five hundred forty-one".