1200534631 has 2 divisors, whose sum is σ = 1200534632. Its totient is φ = 1200534630.

The previous prime is 1200534593. The next prime is 1200534661. The reversal of 1200534631 is 1364350021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200534631 - 2⁹ = 1200534119 is a prime.

It is a super-2 number, since 2×1200534631² = 2882566800460612322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200534596 and 1200534605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200534661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600267315 + 600267316.

It is an arithmetic number, because the mean of its divisors is an integer number (600267316).

Almost surely, 2^1200534631 is an apocalyptic number.

1200534631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200534631 is an equidigital number, since it uses as much as digits as its factorization.

1200534631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1200534631 is about 34648.7320258621. The cubic root of 1200534631 is about 1062.8163596999.

Adding to 1200534631 its reverse (1364350021), we get a palindrome (2564884652).

The spelling of 1200534631 in words is "one billion, two hundred million, five hundred thirty-four thousand, six hundred thirty-one".