1501689913 has 2 divisors, whose sum is σ = 1501689914. Its totient is φ = 1501689912.

The previous prime is 1501689899. The next prime is 1501689923. The reversal of 1501689913 is 3199861051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1402727209 + 98962704 = 37453^2 + 9948^2 .

It is a cyclic number.

It is not a de Polignac number, because 1501689913 - 2⁹ = 1501689401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1501689913.

It is not a weakly prime, because it can be changed into another prime (1501689923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750844956 + 750844957.

It is an arithmetic number, because the mean of its divisors is an integer number (750844957).

Almost surely, 2^1501689913 is an apocalyptic number.

It is an amenable number.

1501689913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1501689913 is an equidigital number, since it uses as much as digits as its factorization.

1501689913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 1501689913 is about 38751.6440038355. The cubic root of 1501689913 is about 1145.1439628803.

The spelling of 1501689913 in words is "one billion, five hundred one million, six hundred eighty-nine thousand, nine hundred thirteen".