2921137 has 2 divisors, whose sum is σ = 2921138. Its totient is φ = 2921136.

The previous prime is 2921131. The next prime is 2921147. The reversal of 2921137 is 7311292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2436721 + 484416 = 1561^2 + 696^2 .

It is a cyclic number.

It is not a de Polignac number, because 2921137 - 2³ = 2921129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2921131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460568 + 1460569.

It is an arithmetic number, because the mean of its divisors is an integer number (1460569).

2^2921137 is an apocalyptic number.

It is an amenable number.

2921137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2921137 is an equidigital number, since it uses as much as digits as its factorization.

2921137 is an evil number, because the sum of its binary digits is even.

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

The square root of 2921137 is about 1709.1334061448. The cubic root of 2921137 is about 142.9499392801.

The spelling of 2921137 in words is "two million, nine hundred twenty-one thousand, one hundred thirty-seven".