1372328213 has 8 divisors (see below), whose sum is σ = 1454093208. Its totient is φ = 1290678784.

The previous prime is 1372328149. The next prime is 1372328239. The reversal of 1372328213 is 3128232731.

It can be written as a sum of positive squares in 4 ways, for example, as 198443569 + 1173884644 = 14087^2 + 34262^2 .

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 1372328213 - 2⁶ = 1372328149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1372328213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372322213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3806 + ... + 52527.

It is an arithmetic number, because the mean of its divisors is an integer number (181761651).

Almost surely, 2^1372328213 is an apocalyptic number.

It is an amenable number.

1372328213 is a deficient number, since it is larger than the sum of its proper divisors (81764995).

1372328213 is a wasteful number, since it uses less digits than its factorization.

1372328213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57783.

The product of its digits is 12096, while the sum is 32.

The square root of 1372328213 is about 37044.9485490262. The cubic root of 1372328213 is about 1111.2693357181.

The spelling of 1372328213 in words is "one billion, three hundred seventy-two million, three hundred twenty-eight thousand, two hundred thirteen".