1515045001 has 2 divisors, whose sum is σ = 1515045002. Its totient is φ = 1515045000.

The previous prime is 1515044969. The next prime is 1515045023. The reversal of 1515045001 is 1005405151.

It is a happy number.

It is an a-pointer prime, because the next prime (1515045023) can be obtained adding 1515045001 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1485331600 + 29713401 = 38540^2 + 5451^2 .

It is an emirp because it is prime and its reverse (1005405151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1515045001 - 2⁵ = 1515044969 is a prime.

It is a super-2 number, since 2×1515045001² = 4590722710110180002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1515045041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757522500 + 757522501.

It is an arithmetic number, because the mean of its divisors is an integer number (757522501).

Almost surely, 2^1515045001 is an apocalyptic number.

It is an amenable number.

1515045001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1515045001 is an equidigital number, since it uses as much as digits as its factorization.

1515045001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1515045001 is about 38923.5789849803. The cubic root of 1515045001 is about 1148.5286794404.

The spelling of 1515045001 in words is "one billion, five hundred fifteen million, forty-five thousand, one".