1372703213 has 4 divisors (see below), whose sum is σ = 1568803680. Its totient is φ = 1176602748.

The previous prime is 1372703209. The next prime is 1372703231. The reversal of 1372703213 is 3123072731.

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 1372703213 - 2² = 1372703209 is a prime.

It is a super-3 number, since 3×1372703213³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372703413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98050223 + ... + 98050236.

It is an arithmetic number, because the mean of its divisors is an integer number (392200920).

Almost surely, 2^1372703213 is an apocalyptic number.

It is an amenable number.

1372703213 is a deficient number, since it is larger than the sum of its proper divisors (196100467).

1372703213 is an equidigital number, since it uses as much as digits as its factorization.

1372703213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196100466.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 1372703213 is about 37050.0096221310. The cubic root of 1372703213 is about 1111.3705476694.

Adding to 1372703213 its reverse (3123072731), we get a palindrome (4495775944).

The spelling of 1372703213 in words is "one billion, three hundred seventy-two million, seven hundred three thousand, two hundred thirteen".