1501573 has 2 divisors, whose sum is σ = 1501574. Its totient is φ = 1501572.

The previous prime is 1501561. The next prime is 1501583. The reversal of 1501573 is 3751051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986049 + 515524 = 993^2 + 718^2 .

It is a cyclic number.

It is not a de Polignac number, because 1501573 - 2⁵ = 1501541 is a prime.

It is an Ulam number.

1501573 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1501523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750786 + 750787.

It is an arithmetic number, because the mean of its divisors is an integer number (750787).

2^1501573 is an apocalyptic number.

It is an amenable number.

1501573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1501573 is an equidigital number, since it uses as much as digits as its factorization.

1501573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 1501573 is about 1225.3868776839. The cubic root of 1501573 is about 114.5114243986.

The spelling of 1501573 in words is "one million, five hundred one thousand, five hundred seventy-three".