147967409 has 2 divisors, whose sum is σ = 147967410. Its totient is φ = 147967408.

The previous prime is 147967397. The next prime is 147967447. The reversal of 147967409 is 904769741.

It is a happy number.

147967409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105678400 + 42289009 = 10280^2 + 6503^2 .

It is a cyclic number.

It is not a de Polignac number, because 147967409 - 2⁸ = 147967153 is a prime.

It is not a weakly prime, because it can be changed into another prime (147967489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73983704 + 73983705.

It is an arithmetic number, because the mean of its divisors is an integer number (73983705).

Almost surely, 2^147967409 is an apocalyptic number.

It is an amenable number.

147967409 is a deficient number, since it is larger than the sum of its proper divisors (1).

147967409 is an equidigital number, since it uses as much as digits as its factorization.

147967409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 147967409 is about 12164.1855049979. The cubic root of 147967409 is about 528.9184172892.

The spelling of 147967409 in words is "one hundred forty-seven million, nine hundred sixty-seven thousand, four hundred nine".