145744433 has 8 divisors (see below), whose sum is σ = 148360296. Its totient is φ = 143136000.

The previous prime is 145744429. The next prime is 145744439. The reversal of 145744433 is 334447541.

145744433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4443664 + 141300769 = 2108^2 + 11887^2 .

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 145744433 - 2² = 145744429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145744393 and 145744402.

It is not an unprimeable number, because it can be changed into a prime (145744439) 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, 50633 + ... + 53433.

It is an arithmetic number, because the mean of its divisors is an integer number (18545037).

Almost surely, 2^145744433 is an apocalyptic number.

It is an amenable number.

145744433 is a deficient number, since it is larger than the sum of its proper divisors (2615863).

145744433 is an equidigital number, since it uses as much as digits as its factorization.

145744433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715.

The product of its digits is 80640, while the sum is 35.

The square root of 145744433 is about 12072.4659038657. The cubic root of 145744433 is about 526.2563206399.

The spelling of 145744433 in words is "one hundred forty-five million, seven hundred forty-four thousand, four hundred thirty-three".