1301206533 has 24 divisors (see below), whose sum is σ = 1925937888. Its totient is φ = 780780000.

The previous prime is 1301206523. The next prime is 1301206541. The reversal of 1301206533 is 3356021031.

It is a happy number.

It is not a de Polignac number, because 1301206533 - 2¹⁸ = 1300944389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301206513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18918 + ... + 54408.

It is an arithmetic number, because the mean of its divisors is an integer number (80247412).

Almost surely, 2^1301206533 is an apocalyptic number.

It is an amenable number.

1301206533 is a deficient number, since it is larger than the sum of its proper divisors (624731355).

1301206533 is a wasteful number, since it uses less digits than its factorization.

1301206533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35617 (or 35606 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1301206533 is about 36072.2404765770. The cubic root of 1301206533 is about 1091.7304200775.

Adding to 1301206533 its reverse (3356021031), we get a palindrome (4657227564).

The spelling of 1301206533 in words is "one billion, three hundred one million, two hundred six thousand, five hundred thirty-three".