2126401135 has 16 divisors (see below), whose sum is σ = 2677185792. Its totient is φ = 1619251200.

The previous prime is 2126401099. The next prime is 2126401139. The reversal of 2126401135 is 5311046212.

It is a happy number.

It is not a de Polignac number, because 2126401135 - 2¹³ = 2126392943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126401139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102994 + ... + 121903.

It is an arithmetic number, because the mean of its divisors is an integer number (167324112).

Almost surely, 2^2126401135 is an apocalyptic number.

2126401135 is a deficient number, since it is larger than the sum of its proper divisors (550784657).

2126401135 is a wasteful number, since it uses less digits than its factorization.

2126401135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224994.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2126401135 is about 46112.9172250032. The cubic root of 2126401135 is about 1285.9232989445.

Adding to 2126401135 its reverse (5311046212), we get a palindrome (7437447347).

The spelling of 2126401135 in words is "two billion, one hundred twenty-six million, four hundred one thousand, one hundred thirty-five".