1321162207 has 8 divisors (see below), whose sum is σ = 1392539760. Its totient is φ = 1249968960.

The previous prime is 1321162201. The next prime is 1321162223. The reversal of 1321162207 is 7022611231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1321162207 is a prime.

It is a super-2 number, since 2×1321162207² = 3490939154410221698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321162201) 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, 31228 + ... + 60145.

It is an arithmetic number, because the mean of its divisors is an integer number (174067470).

Almost surely, 2^1321162207 is an apocalyptic number.

1321162207 is a deficient number, since it is larger than the sum of its proper divisors (71377553).

1321162207 is an equidigital number, since it uses as much as digits as its factorization.

1321162207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92153.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1321162207 is about 36347.7950775559. The cubic root of 1321162207 is about 1097.2831595097.

Adding to 1321162207 its reverse (7022611231), we get a palindrome (8343773438).

The spelling of 1321162207 in words is "one billion, three hundred twenty-one million, one hundred sixty-two thousand, two hundred seven".