147485749 has 2 divisors, whose sum is σ = 147485750. Its totient is φ = 147485748.

The previous prime is 147485747. The next prime is 147485773. The reversal of 147485749 is 947584741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132135025 + 15350724 = 11495^2 + 3918^2 .

It is a cyclic number.

It is not a de Polignac number, because 147485749 - 2¹ = 147485747 is a prime.

Together with 147485747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147485747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73742874 + 73742875.

It is an arithmetic number, because the mean of its divisors is an integer number (73742875).

Almost surely, 2^147485749 is an apocalyptic number.

It is an amenable number.

147485749 is a deficient number, since it is larger than the sum of its proper divisors (1).

147485749 is an equidigital number, since it uses as much as digits as its factorization.

147485749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 49.

The square root of 147485749 is about 12144.3710829339. The cubic root of 147485749 is about 528.3438858752.

The spelling of 147485749 in words is "one hundred forty-seven million, four hundred eighty-five thousand, seven hundred forty-nine".