610845491 has 2 divisors, whose sum is σ = 610845492. Its totient is φ = 610845490.

The previous prime is 610845481. The next prime is 610845541. The reversal of 610845491 is 194548016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 610845491 - 2¹⁰ = 610844467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (610845451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305422745 + 305422746.

It is an arithmetic number, because the mean of its divisors is an integer number (305422746).

Almost surely, 2^610845491 is an apocalyptic number.

610845491 is a deficient number, since it is larger than the sum of its proper divisors (1).

610845491 is an equidigital number, since it uses as much as digits as its factorization.

610845491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 610845491 is about 24715.2886084707. The cubic root of 610845491 is about 848.4842611064.

The spelling of 610845491 in words is "six hundred ten million, eight hundred forty-five thousand, four hundred ninety-one".