13540502212 has 6 divisors (see below), whose sum is σ = 23695878878. Its totient is φ = 6770251104.

The previous prime is 13540502207. The next prime is 13540502231. The reversal of 13540502212 is 21220504531.

It can be written as a sum of positive squares in only one way, i.e., 13496862976 + 43639236 = 116176^2 + 6606^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1692562773 + ... + 1692562780.

Almost surely, 2^13540502212 is an apocalyptic number.

It is an amenable number.

13540502212 is a deficient number, since it is larger than the sum of its proper divisors (10155376666).

13540502212 is a wasteful number, since it uses less digits than its factorization.

13540502212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385125557 (or 3385125555 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 13540502212 in words is "thirteen billion, five hundred forty million, five hundred two thousand, two hundred twelve".