3712129 has 4 divisors (see below), whose sum is σ = 3732820. Its totient is φ = 3691440.

The previous prime is 3712127. The next prime is 3712139. The reversal of 3712129 is 9212173.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9212173 = 401 ⋅22973.

It can be written as a sum of positive squares in 2 ways, for example, as 297025 + 3415104 = 545^2 + 1848^2 .

It is a cyclic number.

It is not a de Polignac number, because 3712129 - 2¹ = 3712127 is a prime.

It is a Duffinian number.

3712129 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3712127) 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, 10074 + ... + 10435.

It is an arithmetic number, because the mean of its divisors is an integer number (933205).

Almost surely, 2^3712129 is an apocalyptic number.

It is an amenable number.

3712129 is a deficient number, since it is larger than the sum of its proper divisors (20691).

3712129 is a wasteful number, since it uses less digits than its factorization.

3712129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20690.

The product of its digits is 756, while the sum is 25.

The square root of 3712129 is about 1926.6886100250. The cubic root of 3712129 is about 154.8368592217.

It can be divided in two parts, 371 and 2129, that added together give a square (2500 = 50²).

The spelling of 3712129 in words is "three million, seven hundred twelve thousand, one hundred twenty-nine".