61814903 has 2 divisors, whose sum is σ = 61814904. Its totient is φ = 61814902.

The previous prime is 61814897. The next prime is 61814933. The reversal of 61814903 is 30941816.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61814903 - 2⁴ = 61814887 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 61814903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61814933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30907451 + 30907452.

It is an arithmetic number, because the mean of its divisors is an integer number (30907452).

Almost surely, 2^61814903 is an apocalyptic number.

61814903 is a deficient number, since it is larger than the sum of its proper divisors (1).

61814903 is an equidigital number, since it uses as much as digits as its factorization.

61814903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 61814903 is about 7862.2454171820. The cubic root of 61814903 is about 395.3949006927.

The spelling of 61814903 in words is "sixty-one million, eight hundred fourteen thousand, nine hundred three".