3725081 has 4 divisors (see below), whose sum is σ = 3744000. Its totient is φ = 3706164.

The previous prime is 3725077. The next prime is 3725101. The reversal of 3725081 is 1805273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1805273 = 367 ⋅4919.

It is a cyclic number.

It is not a de Polignac number, because 3725081 - 2² = 3725077 is a prime.

It is a super-2 number, since 2×3725081² = 27752456913122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3725081.

It is not an unprimeable number, because it can be changed into a prime (3725041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9161 + ... + 9558.

It is an arithmetic number, because the mean of its divisors is an integer number (936000).

Almost surely, 2^3725081 is an apocalyptic number.

It is an amenable number.

3725081 is a deficient number, since it is larger than the sum of its proper divisors (18919).

3725081 is a wasteful number, since it uses less digits than its factorization.

3725081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18918.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 3725081 is about 1930.0468906221. The cubic root of 3725081 is about 155.0167307642.

The spelling of 3725081 in words is "three million, seven hundred twenty-five thousand, eighty-one".