147155723 has 24 divisors (see below), whose sum is σ = 184472064. Its totient is φ = 116202240.

The previous prime is 147155713. The next prime is 147155747. The reversal of 147155723 is 327551741.

It is not a de Polignac number, because 147155723 - 2⁴ = 147155707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147155713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23990 + ... + 29492.

It is an arithmetic number, because the mean of its divisors is an integer number (7686336).

Almost surely, 2^147155723 is an apocalyptic number.

147155723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

147155723 is a deficient number, since it is larger than the sum of its proper divisors (37316341).

147155723 is a wasteful number, since it uses less digits than its factorization.

147155723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555 (or 5544 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 147155723 is about 12130.7758614196. The cubic root of 147155723 is about 527.9495032726.

The spelling of 147155723 in words is "one hundred forty-seven million, one hundred fifty-five thousand, seven hundred twenty-three".