745587041 has 4 divisors (see below), whose sum is σ = 747465492. Its totient is φ = 743708592.

The previous prime is 745587001. The next prime is 745587047. The reversal of 745587041 is 140785547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140785547 = 7 ⋅20112221.

It can be written as a sum of positive squares in 2 ways, for example, as 194323600 + 551263441 = 13940^2 + 23479^2 .

It is a cyclic number.

It is not a de Polignac number, because 745587041 - 2²² = 741392737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745587041.

It is not an unprimeable number, because it can be changed into a prime (745587047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938630 + ... + 939423.

It is an arithmetic number, because the mean of its divisors is an integer number (186866373).

Almost surely, 2^745587041 is an apocalyptic number.

It is an amenable number.

745587041 is a deficient number, since it is larger than the sum of its proper divisors (1878451).

745587041 is a wasteful number, since it uses less digits than its factorization.

745587041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878450.

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 745587041 is about 27305.4397693939. The cubic root of 745587041 is about 906.7748168970.

The spelling of 745587041 in words is "seven hundred forty-five million, five hundred eighty-seven thousand, forty-one".