147438669 has 8 divisors (see below), whose sum is σ = 224668480. Its totient is φ = 84250656.

The previous prime is 147438667. The next prime is 147438679. The reversal of 147438669 is 966834741.

147438669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 147438669 - 2¹ = 147438667 is a prime.

It is a super-2 number, since 2×147438669² = 43476322232983122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147438661) 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, 3510424 + ... + 3510465.

It is an arithmetic number, because the mean of its divisors is an integer number (28083560).

Almost surely, 2^147438669 is an apocalyptic number.

It is an amenable number.

147438669 is a deficient number, since it is larger than the sum of its proper divisors (77229811).

147438669 is an equidigital number, since it uses as much as digits as its factorization.

147438669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020899.

The product of its digits is 870912, while the sum is 48.

The square root of 147438669 is about 12142.4325816535. The cubic root of 147438669 is about 528.2876610589.

It can be divided in two parts, 1 and 47438669, that added together give a triangular number (47438670 = T₉₇₄₀).

The spelling of 147438669 in words is "one hundred forty-seven million, four hundred thirty-eight thousand, six hundred sixty-nine".