461616091 has 2 divisors, whose sum is σ = 461616092. Its totient is φ = 461616090.

The previous prime is 461616041. The next prime is 461616149. The reversal of 461616091 is 190616164.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461616091 - 2¹⁵ = 461583323 is a prime.

It is not a weakly prime, because it can be changed into another prime (461616031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230808045 + 230808046.

It is an arithmetic number, because the mean of its divisors is an integer number (230808046).

Almost surely, 2^461616091 is an apocalyptic number.

461616091 is a deficient number, since it is larger than the sum of its proper divisors (1).

461616091 is an equidigital number, since it uses as much as digits as its factorization.

461616091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 461616091 is about 21485.2528726101. The cubic root of 461616091 is about 772.8472151537.

The spelling of 461616091 in words is "four hundred sixty-one million, six hundred sixteen thousand, ninety-one".