745769545 has 8 divisors (see below), whose sum is σ = 895223880. Its totient is φ = 596415360.

The previous prime is 745769509. The next prime is 745769561. The reversal of 745769545 is 545967547.

It can be written as a sum of positive squares in 4 ways, for example, as 3316041 + 742453504 = 1821^2 + 27248^2 .

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

It is not a de Polignac number, because 745769545 - 2⁹ = 745769033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745769492 and 745769501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7540 + ... + 39349.

It is an arithmetic number, because the mean of its divisors is an integer number (111902985).

Almost surely, 2^745769545 is an apocalyptic number.

It is an amenable number.

745769545 is a deficient number, since it is larger than the sum of its proper divisors (149454335).

745769545 is a wasteful number, since it uses less digits than its factorization.

745769545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50075.

The product of its digits is 5292000, while the sum is 52.

The square root of 745769545 is about 27308.7814631118. The cubic root of 745769545 is about 906.8487973183.

The spelling of 745769545 in words is "seven hundred forty-five million, seven hundred sixty-nine thousand, five hundred forty-five".