1207305641 has 4 divisors (see below), whose sum is σ = 1248936900. Its totient is φ = 1165674384.

The previous prime is 1207305607. The next prime is 1207305667. The reversal of 1207305641 is 1465037021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1465037021 = 7 ⋅209291003.

It can be written as a sum of positive squares in 2 ways, for example, as 960690025 + 246615616 = 30995^2 + 15704^2 .

It is a cyclic number.

It is not a de Polignac number, because 1207305641 - 2¹⁰ = 1207304617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 41631229 = 1207305641 / (1 + 2 + 0 + 7 + 3 + 0 + 5 + 6 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1207305601) 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, 20815586 + ... + 20815643.

It is an arithmetic number, because the mean of its divisors is an integer number (312234225).

Almost surely, 2^1207305641 is an apocalyptic number.

It is an amenable number.

1207305641 is a deficient number, since it is larger than the sum of its proper divisors (41631259).

1207305641 is an equidigital number, since it uses as much as digits as its factorization.

1207305641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41631258.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1207305641 is about 34746.3039904966. The cubic root of 1207305641 is about 1064.8107082003.

The spelling of 1207305641 in words is "one billion, two hundred seven million, three hundred five thousand, six hundred forty-one".