745617361 has 8 divisors (see below), whose sum is σ = 787849920. Its totient is φ = 703683792.

The previous prime is 745617319. The next prime is 745617391. The reversal of 745617361 is 163716547.

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

It is a cyclic number.

It is not a de Polignac number, because 745617361 - 2⁹ = 745616849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745617311) 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, 69610 + ... + 79603.

It is an arithmetic number, because the mean of its divisors is an integer number (98481240).

Almost surely, 2^745617361 is an apocalyptic number.

It is an amenable number.

745617361 is a deficient number, since it is larger than the sum of its proper divisors (42232559).

745617361 is a wasteful number, since it uses less digits than its factorization.

745617361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149495.

The product of its digits is 105840, while the sum is 40.

The square root of 745617361 is about 27305.9949644762. The cubic root of 745617361 is about 906.7871083480.

The spelling of 745617361 in words is "seven hundred forty-five million, six hundred seventeen thousand, three hundred sixty-one".