147740539 has 4 divisors (see below), whose sum is σ = 149764456. Its totient is φ = 145716624.

The previous prime is 147740533. The next prime is 147740609. The reversal of 147740539 is 935047741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935047741 = 19 ⋅49213039.

It is a cyclic number.

It is not a de Polignac number, because 147740539 - 2³ = 147740531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147740531) 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 3 ways as a sum of consecutive naturals, for example, 1011849 + ... + 1011994.

It is an arithmetic number, because the mean of its divisors is an integer number (37441114).

Almost surely, 2^147740539 is an apocalyptic number.

147740539 is a deficient number, since it is larger than the sum of its proper divisors (2023917).

147740539 is an equidigital number, since it uses as much as digits as its factorization.

147740539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023916.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 147740539 is about 12154.8566013754. The cubic root of 147740539 is about 528.6479588552.

The spelling of 147740539 in words is "one hundred forty-seven million, seven hundred forty thousand, five hundred thirty-nine".