1500409973 has 2 divisors, whose sum is σ = 1500409974. Its totient is φ = 1500409972.

The previous prime is 1500409969. The next prime is 1500410011. The reversal of 1500409973 is 3799040051.

It is a happy number.

It is an a-pointer prime, because the next prime (1500410011) can be obtained adding 1500409973 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1161923569 + 338486404 = 34087^2 + 18398^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500409973 - 2² = 1500409969 is a prime.

It is a super-3 number, since 3×1500409973³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1500409373) 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 as a sum of consecutive naturals, namely, 750204986 + 750204987.

It is an arithmetic number, because the mean of its divisors is an integer number (750204987).

Almost surely, 2^1500409973 is an apocalyptic number.

It is an amenable number.

1500409973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500409973 is an equidigital number, since it uses as much as digits as its factorization.

1500409973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 1500409973 is about 38735.1258291489. The cubic root of 1500409973 is about 1144.8185223717.

The spelling of 1500409973 in words is "one billion, five hundred million, four hundred nine thousand, nine hundred seventy-three".