145711723 has 8 divisors (see below), whose sum is σ = 148171088. Its totient is φ = 143265024.

The previous prime is 145711711. The next prime is 145711763. The reversal of 145711723 is 327117541.

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

It is a cyclic number.

It is not a de Polignac number, because 145711723 - 2⁹ = 145711211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145711763) 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, 21640 + ... + 27562.

It is an arithmetic number, because the mean of its divisors is an integer number (18521386).

Almost surely, 2^145711723 is an apocalyptic number.

145711723 is a deficient number, since it is larger than the sum of its proper divisors (2459365).

145711723 is an equidigital number, since it uses as much as digits as its factorization.

145711723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333.

The product of its digits is 5880, while the sum is 31.

The square root of 145711723 is about 12071.1110921903. Note that the first 3 decimals coincide. The cubic root of 145711723 is about 526.2169477646.

The spelling of 145711723 in words is "one hundred forty-five million, seven hundred eleven thousand, seven hundred twenty-three".