1302001501 has 4 divisors (see below), whose sum is σ = 1319837212. Its totient is φ = 1284165792.

The previous prime is 1302001489. The next prime is 1302001513. The reversal of 1302001501 is 1051002031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1051002031 = 53 ⋅19830227.

It is an interprime number because it is at equal distance from previous prime (1302001489) and next prime (1302001513).

It can be written as a sum of positive squares in 2 ways, for example, as 1080765625 + 221235876 = 32875^2 + 14874^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302001501 - 2⁵ = 1302001469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302001541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8917746 + ... + 8917891.

It is an arithmetic number, because the mean of its divisors is an integer number (329959303).

Almost surely, 2^1302001501 is an apocalyptic number.

It is an amenable number.

1302001501 is a deficient number, since it is larger than the sum of its proper divisors (17835711).

1302001501 is an equidigital number, since it uses as much as digits as its factorization.

1302001501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17835710.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1302001501 is about 36083.2579044631. The cubic root of 1302001501 is about 1091.9527045602.

Adding to 1302001501 its reverse (1051002031), we get a palindrome (2353003532).

The spelling of 1302001501 in words is "one billion, three hundred two million, one thousand, five hundred one".