1316222445 has 32 divisors (see below), whose sum is σ = 2145628800. Its totient is φ = 688806144.

The previous prime is 1316222443. The next prime is 1316222471. The reversal of 1316222445 is 5442226131.

It is not a de Polignac number, because 1316222445 - 2¹ = 1316222443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316222443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 647691 + ... + 649719.

It is an arithmetic number, because the mean of its divisors is an integer number (67050900).

Almost surely, 2^1316222445 is an apocalyptic number.

1316222445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316222445 is a deficient number, since it is larger than the sum of its proper divisors (829406355).

1316222445 is a wasteful number, since it uses less digits than its factorization.

1316222445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829.

The product of its digits is 11520, while the sum is 30.

The square root of 1316222445 is about 36279.7801123436. The cubic root of 1316222445 is about 1095.9138885428.

Adding to 1316222445 its reverse (5442226131), we get a palindrome (6758448576).

The spelling of 1316222445 in words is "one billion, three hundred sixteen million, two hundred twenty-two thousand, four hundred forty-five".