145726733 has 8 divisors (see below), whose sum is σ = 148710168. Its totient is φ = 142752064.

The previous prime is 145726729. The next prime is 145726759. The reversal of 145726733 is 337627541.

It can be written as a sum of positive squares in 4 ways, for example, as 114244 + 145612489 = 338^2 + 12067^2 .

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 145726733 - 2² = 145726729 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145726793) 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, 39191 + ... + 42747.

It is an arithmetic number, because the mean of its divisors is an integer number (18588771).

Almost surely, 2^145726733 is an apocalyptic number.

It is an amenable number.

145726733 is a deficient number, since it is larger than the sum of its proper divisors (2983435).

145726733 is an equidigital number, since it uses as much as digits as its factorization.

145726733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383.

The product of its digits is 105840, while the sum is 38.

The square root of 145726733 is about 12071.7328085077. The cubic root of 145726733 is about 526.2350159635.

The spelling of 145726733 in words is "one hundred forty-five million, seven hundred twenty-six thousand, seven hundred thirty-three".