1260532501 has 4 divisors (see below), whose sum is σ = 1260604332. Its totient is φ = 1260460672.

The previous prime is 1260532489. The next prime is 1260532513. The reversal of 1260532501 is 1052350621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1052350621 = 7 ⋅150335803.

It is an interprime number because it is at equal distance from previous prime (1260532489) and next prime (1260532513).

It can be written as a sum of positive squares in 2 ways, for example, as 1097331876 + 163200625 = 33126^2 + 12775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1260532501 - 2¹⁹ = 1260008213 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 (1260532591) 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 in 3 ways as a sum of consecutive naturals, for example, 9831 + ... + 51163.

It is an arithmetic number, because the mean of its divisors is an integer number (315151083).

Almost surely, 2^1260532501 is an apocalyptic number.

It is an amenable number.

1260532501 is a deficient number, since it is larger than the sum of its proper divisors (71831).

1260532501 is an equidigital number, since it uses as much as digits as its factorization.

1260532501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71830.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1260532501 is about 35503.9786643694. The cubic root of 1260532501 is about 1080.2344315623.

The spelling of 1260532501 in words is "one billion, two hundred sixty million, five hundred thirty-two thousand, five hundred one".