1372216144 has 20 divisors (see below), whose sum is σ = 2863182196. Its totient is φ = 633330432.

The previous prime is 1372216141. The next prime is 1372216177. The reversal of 1372216144 is 4416122731.

It can be written as a sum of positive squares in 2 ways, for example, as 865065744 + 507150400 = 29412^2 + 22520^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372216141) 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, 3298389 + ... + 3298804.

Almost surely, 2^1372216144 is an apocalyptic number.

It is an amenable number.

1372216144 is an abundant number, since it is smaller than the sum of its proper divisors (1490966052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1372216144 is a wasteful number, since it uses less digits than its factorization.

1372216144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6597214 (or 6597208 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1372216144 is about 37043.4359097533. The cubic root of 1372216144 is about 1111.2390848806.

Adding to 1372216144 its reverse (4416122731), we get a palindrome (5788338875).

The spelling of 1372216144 in words is "one billion, three hundred seventy-two million, two hundred sixteen thousand, one hundred forty-four".