3732121 has 4 divisors (see below), whose sum is σ = 3852544. Its totient is φ = 3611700.

The previous prime is 3732109. The next prime is 3732139. The reversal of 3732121 is 1212373.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3732121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3732161) 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, 60165 + ... + 60226.

It is an arithmetic number, because the mean of its divisors is an integer number (963136).

Almost surely, 2^3732121 is an apocalyptic number.

3732121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3732121 is a deficient number, since it is larger than the sum of its proper divisors (120423).

3732121 is a wasteful number, since it uses less digits than its factorization.

3732121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120422.

The product of its digits is 252, while the sum is 19.

The square root of 3732121 is about 1931.8698196307. The cubic root of 3732121 is about 155.1143242586.

Adding to 3732121 its product of digits (252), we get a palindrome (3732373).

Adding to 3732121 its reverse (1212373), we get a palindrome (4944494).

The spelling of 3732121 in words is "three million, seven hundred thirty-two thousand, one hundred twenty-one".