147749723 has 8 divisors (see below), whose sum is σ = 168189696. Its totient is φ = 128477800.

The previous prime is 147749713. The next prime is 147749753. The reversal of 147749723 is 327947741.

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

It is not a de Polignac number, because 147749723 - 2⁶ = 147749659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147749713) 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 in 7 ways as a sum of consecutive naturals, for example, 291743 + ... + 292248.

It is an arithmetic number, because the mean of its divisors is an integer number (21023712).

Almost surely, 2^147749723 is an apocalyptic number.

147749723 is a deficient number, since it is larger than the sum of its proper divisors (20439973).

147749723 is a wasteful number, since it uses less digits than its factorization.

147749723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584025.

The product of its digits is 296352, while the sum is 44.

The square root of 147749723 is about 12155.2343868804. The cubic root of 147749723 is about 528.6589127484.

It can be divided in two parts, 147 and 749723, that multiplied together give a triangular number (110209281 = T₁₄₈₄₆).

The spelling of 147749723 in words is "one hundred forty-seven million, seven hundred forty-nine thousand, seven hundred twenty-three".