2120154037 has 2 divisors, whose sum is σ = 2120154038. Its totient is φ = 2120154036.

The previous prime is 2120154019. The next prime is 2120154041. The reversal of 2120154037 is 7304510212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1518972676 + 601181361 = 38974^2 + 24519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120154037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120124037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060077018 + 1060077019.

It is an arithmetic number, because the mean of its divisors is an integer number (1060077019).

Almost surely, 2^2120154037 is an apocalyptic number.

It is an amenable number.

2120154037 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120154037 is an equidigital number, since it uses as much as digits as its factorization.

2120154037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2120154037 is about 46045.1304374306. The cubic root of 2120154037 is about 1284.6627702933.

Adding to 2120154037 its reverse (7304510212), we get a palindrome (9424664249).

The spelling of 2120154037 in words is "two billion, one hundred twenty million, one hundred fifty-four thousand, thirty-seven".