1356222973 has 4 divisors (see below), whose sum is σ = 1549969120. Its totient is φ = 1162476828.

The previous prime is 1356222953. The next prime is 1356222977. The reversal of 1356222973 is 3792226531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3792226531 = 863 ⋅4394237.

It is a cyclic number.

It is not a de Polignac number, because 1356222973 - 2¹³ = 1356214781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356222977) 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, 96873063 + ... + 96873076.

It is an arithmetic number, because the mean of its divisors is an integer number (387492280).

Almost surely, 2^1356222973 is an apocalyptic number.

It is an amenable number.

1356222973 is a deficient number, since it is larger than the sum of its proper divisors (193746147).

1356222973 is an equidigital number, since it uses as much as digits as its factorization.

1356222973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193746146.

The product of its digits is 136080, while the sum is 40.

The square root of 1356222973 is about 36826.9327123506. The cubic root of 1356222973 is about 1106.9050416229.

The spelling of 1356222973 in words is "one billion, three hundred fifty-six million, two hundred twenty-two thousand, nine hundred seventy-three".