1500720701 has 2 divisors, whose sum is σ = 1500720702. Its totient is φ = 1500720700.

The previous prime is 1500720677. The next prime is 1500720709. The reversal of 1500720701 is 1070270051.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 974064100 + 526656601 = 31210^2 + 22949^2 .

It is an emirp because it is prime and its reverse (1070270051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1500720701 - 2¹⁰ = 1500719677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1500720709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750360350 + 750360351.

It is an arithmetic number, because the mean of its divisors is an integer number (750360351).

Almost surely, 2^1500720701 is an apocalyptic number.

It is an amenable number.

1500720701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500720701 is an equidigital number, since it uses as much as digits as its factorization.

1500720701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 1500720701 is about 38739.1365546523. The cubic root of 1500720701 is about 1144.8975457992.

Adding to 1500720701 its reverse (1070270051), we get a palindrome (2570990752).

The spelling of 1500720701 in words is "one billion, five hundred million, seven hundred twenty thousand, seven hundred one".