7145322949 has 2 divisors, whose sum is σ = 7145322950. Its totient is φ = 7145322948.

The previous prime is 7145322917. The next prime is 7145323049. The reversal of 7145322949 is 9492235417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7143292324 + 2030625 = 84518^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 7145322949 - 2⁵ = 7145322917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7145322899 and 7145322908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7145322049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3572661474 + 3572661475.

It is an arithmetic number, because the mean of its divisors is an integer number (3572661475).

Almost surely, 2^7145322949 is an apocalyptic number.

It is an amenable number.

7145322949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7145322949 is an equidigital number, since it uses as much as digits as its factorization.

7145322949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 7145322949 is about 84530.0121199565. The cubic root of 7145322949 is about 1926.0783702345.

The spelling of 7145322949 in words is "seven billion, one hundred forty-five million, three hundred twenty-two thousand, nine hundred forty-nine".