61413019 has 2 divisors, whose sum is σ = 61413020. Its totient is φ = 61413018.

The previous prime is 61413017. The next prime is 61413091. The reversal of 61413019 is 91031416.

Together with next prime (61413091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61413019 - 2¹ = 61413017 is a prime.

It is a super-2 number, since 2×61413019² = 7543117805388722, which contains 22 as substring.

Together with 61413017, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 61412984 and 61413002.

It is not a weakly prime, because it can be changed into another prime (61413017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30706509 + 30706510.

It is an arithmetic number, because the mean of its divisors is an integer number (30706510).

Almost surely, 2^61413019 is an apocalyptic number.

61413019 is a deficient number, since it is larger than the sum of its proper divisors (1).

61413019 is an equidigital number, since it uses as much as digits as its factorization.

61413019 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 25.

The square root of 61413019 is about 7836.6459024253. The cubic root of 61413019 is about 394.5361622655.

The spelling of 61413019 in words is "sixty-one million, four hundred thirteen thousand, nineteen".