1836500401 has 2 divisors, whose sum is σ = 1836500402. Its totient is φ = 1836500400.

The previous prime is 1836500381. The next prime is 1836500447. The reversal of 1836500401 is 1040056381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1753599376 + 82901025 = 41876^2 + 9105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1836500401 - 2⁷ = 1836500273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1836500401.

It is not a weakly prime, because it can be changed into another prime (1836500801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 918250200 + 918250201.

It is an arithmetic number, because the mean of its divisors is an integer number (918250201).

Almost surely, 2^1836500401 is an apocalyptic number.

It is an amenable number.

1836500401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1836500401 is an equidigital number, since it uses as much as digits as its factorization.

1836500401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1836500401 is about 42854.4093530642. The cubic root of 1836500401 is about 1224.6077658021.

Adding to 1836500401 its reverse (1040056381), we get a palindrome (2876556782).

The spelling of 1836500401 in words is "one billion, eight hundred thirty-six million, five hundred thousand, four hundred one".