61110397 has 2 divisors, whose sum is σ = 61110398. Its totient is φ = 61110396.

The previous prime is 61110391. The next prime is 61110409. The reversal of 61110397 is 79301116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60621796 + 488601 = 7786^2 + 699^2 .

It is a cyclic number.

It is not a de Polignac number, because 61110397 - 2³ = 61110389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61110391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30555198 + 30555199.

It is an arithmetic number, because the mean of its divisors is an integer number (30555199).

Almost surely, 2^61110397 is an apocalyptic number.

It is an amenable number.

61110397 is a deficient number, since it is larger than the sum of its proper divisors (1).

61110397 is an equidigital number, since it uses as much as digits as its factorization.

61110397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 61110397 is about 7817.3139248721. The cubic root of 61110397 is about 393.8870492275.

The spelling of 61110397 in words is "sixty-one million, one hundred ten thousand, three hundred ninety-seven".