1213063525 has 6 divisors (see below), whose sum is σ = 1504198802. Its totient is φ = 970450800.

The previous prime is 1213063519. The next prime is 1213063589. The reversal of 1213063525 is 5253603121.

It can be written as a sum of positive squares in 3 ways, for example, as 351112644 + 861950881 = 18738^2 + 29359^2 .

It is not a de Polignac number, because 1213063525 - 2¹¹ = 1213061477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213063493 and 1213063502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24261246 + ... + 24261295.

Almost surely, 2^1213063525 is an apocalyptic number.

It is an amenable number.

1213063525 is a deficient number, since it is larger than the sum of its proper divisors (291135277).

1213063525 is an equidigital number, since it uses as much as digits as its factorization.

1213063525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48522551 (or 48522546 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1213063525 is about 34829.0615004194. The cubic root of 1213063525 is about 1066.5007899069.

Adding to 1213063525 its reverse (5253603121), we get a palindrome (6466666646).

The spelling of 1213063525 in words is "one billion, two hundred thirteen million, sixty-three thousand, five hundred twenty-five".