7485149291 has 2 divisors, whose sum is σ = 7485149292. Its totient is φ = 7485149290.

The previous prime is 7485149263. The next prime is 7485149303. The reversal of 7485149291 is 1929415847.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7485149291 is a prime.

It is not a weakly prime, because it can be changed into another prime (7485140291) 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 as a sum of consecutive naturals, namely, 3742574645 + 3742574646.

It is an arithmetic number, because the mean of its divisors is an integer number (3742574646).

Almost surely, 2^7485149291 is an apocalyptic number.

7485149291 is a deficient number, since it is larger than the sum of its proper divisors (1).

7485149291 is an equidigital number, since it uses as much as digits as its factorization.

7485149291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 7485149291 is about 86516.7572843550. The cubic root of 7485149291 is about 1956.1409989030.

The spelling of 7485149291 in words is "seven billion, four hundred eighty-five million, one hundred forty-nine thousand, two hundred ninety-one".