745510651 has 8 divisors (see below), whose sum is σ = 768677184. Its totient is φ = 722609160.

The previous prime is 745510637. The next prime is 745510679. The reversal of 745510651 is 156015547.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745510651 is a prime.

It is a super-2 number, since 2×745510651² = 1111572261508887602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745510751) 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, 60541 + ... + 71806.

It is an arithmetic number, because the mean of its divisors is an integer number (96084648).

Almost surely, 2^745510651 is an apocalyptic number.

745510651 is a deficient number, since it is larger than the sum of its proper divisors (23166533).

745510651 is a wasteful number, since it uses less digits than its factorization.

745510651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132521.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 745510651 is about 27304.0409280385. The cubic root of 745510651 is about 906.7438476114.

The spelling of 745510651 in words is "seven hundred forty-five million, five hundred ten thousand, six hundred fifty-one".