1650023273 has 2 divisors, whose sum is σ = 1650023274. Its totient is φ = 1650023272.

The previous prime is 1650023261. The next prime is 1650023387. The reversal of 1650023273 is 3723200561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1246937344 + 403085929 = 35312^2 + 20077^2 .

It is a cyclic number.

It is not a de Polignac number, because 1650023273 - 2¹⁰ = 1650022249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1650023203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825011636 + 825011637.

It is an arithmetic number, because the mean of its divisors is an integer number (825011637).

Almost surely, 2^1650023273 is an apocalyptic number.

It is an amenable number.

1650023273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650023273 is an equidigital number, since it uses as much as digits as its factorization.

1650023273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 1650023273 is about 40620.4784929966. The cubic root of 1650023273 is about 1181.6713061802.

The spelling of 1650023273 in words is "one billion, six hundred fifty million, twenty-three thousand, two hundred seventy-three".