1501402505 has 16 divisors (see below), whose sum is σ = 1829637120. Its totient is φ = 1182572352.

The previous prime is 1501402489. The next prime is 1501402519. The reversal of 1501402505 is 5052041051.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1501402505 - 2⁴ = 1501402489 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 139787 + ... + 150143.

It is an arithmetic number, because the mean of its divisors is an integer number (114352320).

Almost surely, 2^1501402505 is an apocalyptic number.

It is an amenable number.

1501402505 is a deficient number, since it is larger than the sum of its proper divisors (328234615).

1501402505 is a wasteful number, since it uses less digits than its factorization.

1501402505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10808.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1501402505 is about 38747.9354933911. The cubic root of 1501402505 is about 1145.0709019613.

Adding to 1501402505 its reverse (5052041051), we get a palindrome (6553443556).

The spelling of 1501402505 in words is "one billion, five hundred one million, four hundred two thousand, five hundred five".