1505212273 has 2 divisors, whose sum is σ = 1505212274. Its totient is φ = 1505212272.

The previous prime is 1505212237. The next prime is 1505212279. The reversal of 1505212273 is 3722125051.

Together with previous prime (1505212237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1323286129 + 181926144 = 36377^2 + 13488^2 .

It is a cyclic number.

It is not a de Polignac number, because 1505212273 - 2²⁵ = 1471657841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1505212279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 752606136 + 752606137.

It is an arithmetic number, because the mean of its divisors is an integer number (752606137).

Almost surely, 2^1505212273 is an apocalyptic number.

It is an amenable number.

1505212273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1505212273 is an equidigital number, since it uses as much as digits as its factorization.

1505212273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1505212273 is about 38797.0652627232. The cubic root of 1505212273 is about 1146.0386126604.

The spelling of 1505212273 in words is "one billion, five hundred five million, two hundred twelve thousand, two hundred seventy-three".