745051517 has 6 divisors (see below), whose sum is σ = 866692638. Its totient is φ = 638615544.

The previous prime is 745051501. The next prime is 745051519. The reversal of 745051517 is 715150547.

It can be written as a sum of positive squares in only one way, i.e., 662496121 + 82555396 = 25739^2 + 9086^2 .

It is not a de Polignac number, because 745051517 - 2⁴ = 745051501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745051519) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7602518 + ... + 7602615.

It is an arithmetic number, because the mean of its divisors is an integer number (144448773).

Almost surely, 2^745051517 is an apocalyptic number.

It is an amenable number.

745051517 is a deficient number, since it is larger than the sum of its proper divisors (121641121).

745051517 is a wasteful number, since it uses less digits than its factorization.

745051517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15205147 (or 15205140 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 745051517 is about 27295.6318300200. The cubic root of 745051517 is about 906.5576654183.

The spelling of 745051517 in words is "seven hundred forty-five million, fifty-one thousand, five hundred seventeen".