147964409 has 8 divisors (see below), whose sum is σ = 153669960. Its totient is φ = 142299136.

The previous prime is 147964387. The next prime is 147964417. The reversal of 147964409 is 904469741.

147964409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 40386025 + 107578384 = 6355^2 + 10372^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147964409 - 2¹² = 147960313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147964409.

It is not an unprimeable number, because it can be changed into a prime (147964459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474 + ... + 17379.

It is an arithmetic number, because the mean of its divisors is an integer number (19208745).

Almost surely, 2^147964409 is an apocalyptic number.

It is an amenable number.

147964409 is a deficient number, since it is larger than the sum of its proper divisors (5705551).

147964409 is a wasteful number, since it uses less digits than its factorization.

147964409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20139.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 147964409 is about 12164.0621915543. The cubic root of 147964409 is about 528.9148427048.

The spelling of 147964409 in words is "one hundred forty-seven million, nine hundred sixty-four thousand, four hundred nine".