1504223145 has 24 divisors (see below), whose sum is σ = 2608254792. Its totient is φ = 801964800.

The previous prime is 1504223143. The next prime is 1504223153. The reversal of 1504223145 is 5413224051.

It can be written as a sum of positive squares in 4 ways, for example, as 191102976 + 1313120169 = 13824^2 + 36237^2 .

It is not a de Polignac number, because 1504223145 - 2¹ = 1504223143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1504223143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195165 + ... + 202725.

It is an arithmetic number, because the mean of its divisors is an integer number (108677283).

Almost surely, 2^1504223145 is an apocalyptic number.

1504223145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1504223145 is a deficient number, since it is larger than the sum of its proper divisors (1104031647).

1504223145 is a wasteful number, since it uses less digits than its factorization.

1504223145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11993 (or 11990 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1504223145 is about 38784.3157088017. The cubic root of 1504223145 is about 1145.7875235401.

Adding to 1504223145 its reverse (5413224051), we get a palindrome (6917447196).

The spelling of 1504223145 in words is "one billion, five hundred four million, two hundred twenty-three thousand, one hundred forty-five".