1636134001 has 2 divisors, whose sum is σ = 1636134002. Its totient is φ = 1636134000.

The previous prime is 1636133981. The next prime is 1636134007. The reversal of 1636134001 is 1004316361.

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., 1572915600 + 63218401 = 39660^2 + 7951^2 .

It is a cyclic number.

It is not a de Polignac number, because 1636134001 - 2⁹ = 1636133489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1636134007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 818067000 + 818067001.

It is an arithmetic number, because the mean of its divisors is an integer number (818067001).

Almost surely, 2^1636134001 is an apocalyptic number.

It is an amenable number.

1636134001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1636134001 is an equidigital number, since it uses as much as digits as its factorization.

1636134001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1636134001 is about 40449.1532791479. The cubic root of 1636134001 is about 1178.3463384685.

The spelling of 1636134001 in words is "one billion, six hundred thirty-six million, one hundred thirty-four thousand, one".