145868723 has 16 divisors (see below), whose sum is σ = 195853056. Its totient is φ = 104919840.

The previous prime is 145868717. The next prime is 145868729. The reversal of 145868723 is 327868541.

It is an interprime number because it is at equal distance from previous prime (145868717) and next prime (145868729).

It is a cyclic number.

It is not a de Polignac number, because 145868723 - 2⁴ = 145868707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145868729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71861 + ... + 73862.

It is an arithmetic number, because the mean of its divisors is an integer number (12240816).

Almost surely, 2^145868723 is an apocalyptic number.

145868723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145868723 is a deficient number, since it is larger than the sum of its proper divisors (49984333).

145868723 is a wasteful number, since it uses less digits than its factorization.

145868723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145754.

The product of its digits is 322560, while the sum is 44.

The square root of 145868723 is about 12077.6124710143. The cubic root of 145868723 is about 526.4058742392.

It can be divided in two parts, 145 and 868723, that added together give a palindrome (868868).

The spelling of 145868723 in words is "one hundred forty-five million, eight hundred sixty-eight thousand, seven hundred twenty-three".