11542397 has 2 divisors, whose sum is σ = 11542398. Its totient is φ = 11542396.

The previous prime is 11542379. The next prime is 11542417. The reversal of 11542397 is 79324511.

11542397 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (11542379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9369721 + 2172676 = 3061^2 + 1474^2 .

It is a cyclic number.

It is not a de Polignac number, because 11542397 - 2¹⁸ = 11280253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11542327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771198 + 5771199.

It is an arithmetic number, because the mean of its divisors is an integer number (5771199).

Almost surely, 2^11542397 is an apocalyptic number.

It is an amenable number.

11542397 is a deficient number, since it is larger than the sum of its proper divisors (1).

11542397 is an equidigital number, since it uses as much as digits as its factorization.

11542397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 11542397 is about 3397.4103373010. The cubic root of 11542397 is about 225.9949159584.

The spelling of 11542397 in words is "eleven million, five hundred forty-two thousand, three hundred ninety-seven".