2120537 has 2 divisors, whose sum is σ = 2120538. Its totient is φ = 2120536.

The previous prime is 2120513. The next prime is 2120549. The reversal of 2120537 is 7350212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1308736 + 811801 = 1144^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120537 - 2⁶ = 2120473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2125537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060268 + 1060269.

It is an arithmetic number, because the mean of its divisors is an integer number (1060269).

2^2120537 is an apocalyptic number.

It is an amenable number.

2120537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120537 is an equidigital number, since it uses as much as digits as its factorization.

2120537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2120537 is about 1456.2063727371. The cubic root of 2120537 is about 128.4740115096.

Adding to 2120537 its reverse (7350212), we get a palindrome (9470749).

The spelling of 2120537 in words is "two million, one hundred twenty thousand, five hundred thirty-seven".