61140259 has 2 divisors, whose sum is σ = 61140260. Its totient is φ = 61140258.

The previous prime is 61140257. The next prime is 61140293. The reversal of 61140259 is 95204116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61140259 - 2¹ = 61140257 is a prime.

Together with 61140257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61140251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30570129 + 30570130.

It is an arithmetic number, because the mean of its divisors is an integer number (30570130).

Almost surely, 2^61140259 is an apocalyptic number.

61140259 is a deficient number, since it is larger than the sum of its proper divisors (1).

61140259 is an equidigital number, since it uses as much as digits as its factorization.

61140259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 61140259 is about 7819.2236826938. The cubic root of 61140259 is about 393.9511972844.

The spelling of 61140259 in words is "sixty-one million, one hundred forty thousand, two hundred fifty-nine".