1308212401 has 8 divisors (see below), whose sum is σ = 1321194600. Its totient is φ = 1295286528.

The previous prime is 1308212393. The next prime is 1308212443. The reversal of 1308212401 is 1042128031.

1308212401 = 25575² + 25576².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 233356176 + 1074856225 = 15276^2 + 32785^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1308212401 - 2³ = 1308212393 is a prime.

It is a super-2 number, since 2×1308212401² = 3422839372260369602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1308212471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33385 + ... + 61081.

It is an arithmetic number, because the mean of its divisors is an integer number (165149325).

Almost surely, 2^1308212401 is an apocalyptic number.

1308212401 is the 25576-th centered square number.

It is an amenable number.

1308212401 is a deficient number, since it is larger than the sum of its proper divisors (12982199).

1308212401 is a wasteful number, since it uses less digits than its factorization.

1308212401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28163.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1308212401 is about 36169.2189713850. The cubic root of 1308212401 is about 1093.6862544139.

The spelling of 1308212401 in words is "one billion, three hundred eight million, two hundred twelve thousand, four hundred one".