745270143 has 8 divisors (see below), whose sum is σ = 1002487728. Its totient is φ = 492449664.

The previous prime is 745270133. The next prime is 745270147. The reversal of 745270143 is 341072547.

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

It is not a de Polignac number, because 745270143 - 2¹⁴ = 745253759 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 (745270147) 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, 1098880 + ... + 1099557.

It is an arithmetic number, because the mean of its divisors is an integer number (125310966).

Almost surely, 2^745270143 is an apocalyptic number.

745270143 is a deficient number, since it is larger than the sum of its proper divisors (257217585).

745270143 is a wasteful number, since it uses less digits than its factorization.

745270143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198553.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 745270143 is about 27299.6363162589. The cubic root of 745270143 is about 906.6463293959.

The spelling of 745270143 in words is "seven hundred forty-five million, two hundred seventy thousand, one hundred forty-three".