745276189 has 4 divisors (see below), whose sum is σ = 851744224. Its totient is φ = 638808156.

The previous prime is 745276183. The next prime is 745276201. The reversal of 745276189 is 981672547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 745276189 - 2⁵ = 745276157 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745276183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53234007 + ... + 53234020.

It is an arithmetic number, because the mean of its divisors is an integer number (212936056).

Almost surely, 2^745276189 is an apocalyptic number.

It is an amenable number.

745276189 is a deficient number, since it is larger than the sum of its proper divisors (106468035).

745276189 is a wasteful number, since it uses less digits than its factorization.

745276189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106468034.

The product of its digits is 846720, while the sum is 49.

The square root of 745276189 is about 27299.7470501102. The cubic root of 745276189 is about 906.6487811104.

The spelling of 745276189 in words is "seven hundred forty-five million, two hundred seventy-six thousand, one hundred eighty-nine".