1336127021 has 4 divisors (see below), whose sum is σ = 1349099232. Its totient is φ = 1323154812.

The previous prime is 1336127011. The next prime is 1336127027. The reversal of 1336127021 is 1207216331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1336127021 - 2¹⁰ = 1336125997 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 (1336127027) 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, 6485951 + ... + 6486156.

It is an arithmetic number, because the mean of its divisors is an integer number (337274808).

Almost surely, 2^1336127021 is an apocalyptic number.

It is an amenable number.

1336127021 is a deficient number, since it is larger than the sum of its proper divisors (12972211).

1336127021 is a wasteful number, since it uses less digits than its factorization.

1336127021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12972210.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1336127021 is about 36553.0712936683. The cubic root of 1336127021 is about 1101.4105928224.

The spelling of 1336127021 in words is "one billion, three hundred thirty-six million, one hundred twenty-seven thousand, twenty-one".