145252723 has 24 divisors (see below), whose sum is σ = 184778496. Its totient is φ = 110905200.

The previous prime is 145252711. The next prime is 145252727. The reversal of 145252723 is 327252541.

It is not a de Polignac number, because 145252723 - 2²⁵ = 111698291 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145252727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891040 + ... + 891202.

It is an arithmetic number, because the mean of its divisors is an integer number (7699104).

Almost surely, 2^145252723 is an apocalyptic number.

145252723 is a deficient number, since it is larger than the sum of its proper divisors (39525773).

145252723 is an equidigital number, since it uses as much as digits as its factorization.

145252723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 252 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 145252723 is about 12052.0837617401. The cubic root of 145252723 is about 525.6638290597.

The spelling of 145252723 in words is "one hundred forty-five million, two hundred fifty-two thousand, seven hundred twenty-three".