13540733 has 2 divisors, whose sum is σ = 13540734. Its totient is φ = 13540732.

The previous prime is 13540729. The next prime is 13540739. The reversal of 13540733 is 33704531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8282884 + 5257849 = 2878^2 + 2293^2 .

It is a cyclic number.

It is not a de Polignac number, because 13540733 - 2² = 13540729 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13540739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6770366 + 6770367.

It is an arithmetic number, because the mean of its divisors is an integer number (6770367).

Almost surely, 2^13540733 is an apocalyptic number.

It is an amenable number.

13540733 is a deficient number, since it is larger than the sum of its proper divisors (1).

13540733 is an equidigital number, since it uses as much as digits as its factorization.

13540733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 13540733 is about 3679.7734984643. The cubic root of 13540733 is about 238.3493973665.

The spelling of 13540733 in words is "thirteen million, five hundred forty thousand, seven hundred thirty-three".