61413091 has 2 divisors, whose sum is σ = 61413092. Its totient is φ = 61413090.

The previous prime is 61413019. The next prime is 61413103. The reversal of 61413091 is 19031416.

Together with previous prime (61413019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61413091 - 2¹¹ = 61411043 is a prime.

It is equal to p_3640903 and since 61413091 and 3640903 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (61413691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30706545 + 30706546.

It is an arithmetic number, because the mean of its divisors is an integer number (30706546).

Almost surely, 2^61413091 is an apocalyptic number.

61413091 is a deficient number, since it is larger than the sum of its proper divisors (1).

61413091 is an equidigital number, since it uses as much as digits as its factorization.

61413091 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 61413091 is about 7836.6504962261. The cubic root of 61413091 is about 394.5363164489.

The spelling of 61413091 in words is "sixty-one million, four hundred thirteen thousand, ninety-one".