1301725163 has 4 divisors (see below), whose sum is σ = 1306564560. Its totient is φ = 1296885768.

The previous prime is 1301725141. The next prime is 1301725223. The reversal of 1301725163 is 3615271031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3615271031 = 23 ⋅157185697.

It is a cyclic number.

It is not a de Polignac number, because 1301725163 - 2²² = 1297530859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301725133) 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, 2419295 + ... + 2419832.

It is an arithmetic number, because the mean of its divisors is an integer number (326641140).

Almost surely, 2^1301725163 is an apocalyptic number.

1301725163 is a deficient number, since it is larger than the sum of its proper divisors (4839397).

1301725163 is an equidigital number, since it uses as much as digits as its factorization.

1301725163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4839396.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 1301725163 is about 36079.4285292880. The cubic root of 1301725163 is about 1091.8754467443.

Adding to 1301725163 its reverse (3615271031), we get a palindrome (4916996194).

The spelling of 1301725163 in words is "one billion, three hundred one million, seven hundred twenty-five thousand, one hundred sixty-three".