1372120205 has 8 divisors (see below), whose sum is σ = 1649108832. Its totient is φ = 1095986448.

The previous prime is 1372120199. The next prime is 1372120237. The reversal of 1372120205 is 5020212731.

It is a happy number.

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 1372120205 - 2¹⁶ = 1372054669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210179 + ... + 216608.

It is an arithmetic number, because the mean of its divisors is an integer number (206138604).

Almost surely, 2^1372120205 is an apocalyptic number.

It is an amenable number.

1372120205 is a deficient number, since it is larger than the sum of its proper divisors (276988627).

1372120205 is an equidigital number, since it uses as much as digits as its factorization.

1372120205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427435.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1372120205 is about 37042.1409343467. The cubic root of 1372120205 is about 1111.2131867130.

Adding to 1372120205 its reverse (5020212731), we get a palindrome (6392332936).

The spelling of 1372120205 in words is "one billion, three hundred seventy-two million, one hundred twenty thousand, two hundred five".