610049021 has 2 divisors, whose sum is σ = 610049022. Its totient is φ = 610049020.

The previous prime is 610048997. The next prime is 610049023. The reversal of 610049021 is 120940016.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309408100 + 300640921 = 17590^2 + 17339^2 .

It is a cyclic number.

It is not a de Polignac number, because 610049021 - 2¹⁴ = 610032637 is a prime.

Together with 610049023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610049023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305024510 + 305024511.

It is an arithmetic number, because the mean of its divisors is an integer number (305024511).

Almost surely, 2^610049021 is an apocalyptic number.

It is an amenable number.

610049021 is a deficient number, since it is larger than the sum of its proper divisors (1).

610049021 is an equidigital number, since it uses as much as digits as its factorization.

610049021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 610049021 is about 24699.1704516569. The cubic root of 610049021 is about 848.1153264631.

Adding to 610049021 its reverse (120940016), we get a palindrome (730989037).

The spelling of 610049021 in words is "six hundred ten million, forty-nine thousand, twenty-one".