1505873 has 2 divisors, whose sum is σ = 1505874. Its totient is φ = 1505872.

The previous prime is 1505851. The next prime is 1505893. The reversal of 1505873 is 3785051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 786769 + 719104 = 887^2 + 848^2 .

It is a cyclic number.

It is not a de Polignac number, because 1505873 - 2¹² = 1501777 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1505813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 752936 + 752937.

It is an arithmetic number, because the mean of its divisors is an integer number (752937).

2^1505873 is an apocalyptic number.

It is an amenable number.

1505873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1505873 is an equidigital number, since it uses as much as digits as its factorization.

1505873 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 29.

The square root of 1505873 is about 1227.1401712926. The cubic root of 1505873 is about 114.6206276252.

The spelling of 1505873 in words is "one million, five hundred five thousand, eight hundred seventy-three".