147749169 has 8 divisors (see below), whose sum is σ = 197055040. Its totient is φ = 98471376.

The previous prime is 147749143. The next prime is 147749179. The reversal of 147749169 is 961947741.

147749169 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 147749169 - 2¹¹ = 147747121 is a prime.

It is a super-2 number, since 2×147749169² = 43659633880381122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (147749179) 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, 17367 + ... + 24435.

It is an arithmetic number, because the mean of its divisors is an integer number (24631880).

Almost surely, 2^147749169 is an apocalyptic number.

It is an amenable number.

147749169 is a deficient number, since it is larger than the sum of its proper divisors (49305871).

147749169 is an equidigital number, since it uses as much as digits as its factorization.

147749169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14039.

The product of its digits is 381024, while the sum is 48.

The square root of 147749169 is about 12155.2115983228. The cubic root of 147749169 is about 528.6582519973.

The spelling of 147749169 in words is "one hundred forty-seven million, seven hundred forty-nine thousand, one hundred sixty-nine".