2135400019 has 2 divisors, whose sum is σ = 2135400020. Its totient is φ = 2135400018.

The previous prime is 2135399993. The next prime is 2135400037. The reversal of 2135400019 is 9100045312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2135400019 - 2²⁷ = 2001182291 is a prime.

It is a super-2 number, since 2×2135400019² = 9119866482290400722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2135399966 and 2135400002.

It is not a weakly prime, because it can be changed into another prime (2135400049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067700009 + 1067700010.

It is an arithmetic number, because the mean of its divisors is an integer number (1067700010).

Almost surely, 2^2135400019 is an apocalyptic number.

2135400019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135400019 is an equidigital number, since it uses as much as digits as its factorization.

2135400019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2135400019 is about 46210.3886480086. The cubic root of 2135400019 is about 1287.7347459486.

The spelling of 2135400019 in words is "two billion, one hundred thirty-five million, four hundred thousand, nineteen".