61860269 has 2 divisors, whose sum is σ = 61860270. Its totient is φ = 61860268.

The previous prime is 61860233. The next prime is 61860299. The reversal of 61860269 is 96206816.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57912100 + 3948169 = 7610^2 + 1987^2 .

It is a cyclic number.

It is not a de Polignac number, because 61860269 - 2⁸ = 61860013 is a prime.

It is a super-2 number, since 2×61860269² = 7653385761504722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61860209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30930134 + 30930135.

It is an arithmetic number, because the mean of its divisors is an integer number (30930135).

Almost surely, 2^61860269 is an apocalyptic number.

It is an amenable number.

61860269 is a deficient number, since it is larger than the sum of its proper divisors (1).

61860269 is an equidigital number, since it uses as much as digits as its factorization.

61860269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 61860269 is about 7865.1299417111. The cubic root of 61860269 is about 395.4916039033.

The spelling of 61860269 in words is "sixty-one million, eight hundred sixty thousand, two hundred sixty-nine".