2135400037 has 2 divisors, whose sum is σ = 2135400038. Its totient is φ = 2135400036.

The previous prime is 2135400019. The next prime is 2135400041. The reversal of 2135400037 is 7300045312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2075166916 + 60233121 = 45554^2 + 7761^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135400037 - 2¹¹ = 2135397989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2135399984 and 2135400020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135400067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067700018 + 1067700019.

It is an arithmetic number, because the mean of its divisors is an integer number (1067700019).

Almost surely, 2^2135400037 is an apocalyptic number.

It is an amenable number.

2135400037 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135400037 is an equidigital number, since it uses as much as digits as its factorization.

2135400037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2135400037 is about 46210.3888427700. The cubic root of 2135400037 is about 1287.7347495668.

Adding to 2135400037 its reverse (7300045312), we get a palindrome (9435445349).

The spelling of 2135400037 in words is "two billion, one hundred thirty-five million, four hundred thousand, thirty-seven".