1212536541 has 16 divisors (see below), whose sum is σ = 1623623168. Its totient is φ = 804913200.

The previous prime is 1212536539. The next prime is 1212536551. The reversal of 1212536541 is 1456352121.

It is not a de Polignac number, because 1212536541 - 2¹ = 1212536539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212536499 and 1212536508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212536531) 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, 1034886 + ... + 1036056.

It is an arithmetic number, because the mean of its divisors is an integer number (101476448).

Almost surely, 2^1212536541 is an apocalyptic number.

It is an amenable number.

1212536541 is a deficient number, since it is larger than the sum of its proper divisors (411086627).

1212536541 is a wasteful number, since it uses less digits than its factorization.

1212536541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352.

The product of its digits is 7200, while the sum is 30.

The square root of 1212536541 is about 34821.4953871886. The cubic root of 1212536541 is about 1066.3463296645.

Adding to 1212536541 its reverse (1456352121), we get a palindrome (2668888662).

The spelling of 1212536541 in words is "one billion, two hundred twelve million, five hundred thirty-six thousand, five hundred forty-one".