61255123 has 2 divisors, whose sum is σ = 61255124. Its totient is φ = 61255122.

The previous prime is 61255111. The next prime is 61255127. The reversal of 61255123 is 32155216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61255123 - 2¹³ = 61246931 is a prime.

It is not a weakly prime, because it can be changed into another prime (61255127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30627561 + 30627562.

It is an arithmetic number, because the mean of its divisors is an integer number (30627562).

Almost surely, 2^61255123 is an apocalyptic number.

61255123 is a deficient number, since it is larger than the sum of its proper divisors (1).

61255123 is an equidigital number, since it uses as much as digits as its factorization.

61255123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 61255123 is about 7826.5652108700. The cubic root of 61255123 is about 394.1977478830.

The spelling of 61255123 in words is "sixty-one million, two hundred fifty-five thousand, one hundred twenty-three".