3731149 has 4 divisors (see below), whose sum is σ = 3735036. Its totient is φ = 3727264.

The previous prime is 3731141. The next prime is 3731173. The reversal of 3731149 is 9411373.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9411373 = 173 ⋅54401.

It can be written as a sum of positive squares in 2 ways, for example, as 864900 + 2866249 = 930^2 + 1693^2 .

It is a cyclic number.

It is not a de Polignac number, because 3731149 - 2³ = 3731141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3731141) 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, 657 + ... + 2809.

It is an arithmetic number, because the mean of its divisors is an integer number (933759).

Almost surely, 2^3731149 is an apocalyptic number.

It is an amenable number.

3731149 is a deficient number, since it is larger than the sum of its proper divisors (3887).

3731149 is a wasteful number, since it uses less digits than its factorization.

3731149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886.

The product of its digits is 2268, while the sum is 28.

The square root of 3731149 is about 1931.6182335027. The cubic root of 3731149 is about 155.1008570091.

The spelling of 3731149 in words is "three million, seven hundred thirty-one thousand, one hundred forty-nine".