147445693 has 2 divisors, whose sum is σ = 147445694. Its totient is φ = 147445692.

The previous prime is 147445637. The next prime is 147445733. The reversal of 147445693 is 396544741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141205689 + 6240004 = 11883^2 + 2498^2 .

It is a cyclic number.

It is not a de Polignac number, because 147445693 - 2¹³ = 147437501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147442693) 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, 73722846 + 73722847.

It is an arithmetic number, because the mean of its divisors is an integer number (73722847).

Almost surely, 2^147445693 is an apocalyptic number.

It is an amenable number.

147445693 is a deficient number, since it is larger than the sum of its proper divisors (1).

147445693 is an equidigital number, since it uses as much as digits as its factorization.

147445693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 147445693 is about 12142.7218118509. The cubic root of 147445693 is about 528.2960501598.

The spelling of 147445693 in words is "one hundred forty-seven million, four hundred forty-five thousand, six hundred ninety-three".