61169201 has 2 divisors, whose sum is σ = 61169202. Its totient is φ = 61169200.

The previous prime is 61169197. The next prime is 61169203. The reversal of 61169201 is 10296116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60855601 + 313600 = 7801^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 61169201 - 2² = 61169197 is a prime.

Together with 61169203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61169203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30584600 + 30584601.

It is an arithmetic number, because the mean of its divisors is an integer number (30584601).

Almost surely, 2^61169201 is an apocalyptic number.

It is an amenable number.

61169201 is a deficient number, since it is larger than the sum of its proper divisors (1).

61169201 is an equidigital number, since it uses as much as digits as its factorization.

61169201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 61169201 is about 7821.0741589631. The cubic root of 61169201 is about 394.0133491144.

The spelling of 61169201 in words is "sixty-one million, one hundred sixty-nine thousand, two hundred one".