745659751 has 2 divisors, whose sum is σ = 745659752. Its totient is φ = 745659750.

The previous prime is 745659721. The next prime is 745659757. The reversal of 745659751 is 157956547.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745659751 is a prime.

It is a super-2 number, since 2×745659751² = 1112016928522764002, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 745659695 and 745659704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745659757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372829875 + 372829876.

It is an arithmetic number, because the mean of its divisors is an integer number (372829876).

Almost surely, 2^745659751 is an apocalyptic number.

745659751 is a deficient number, since it is larger than the sum of its proper divisors (1).

745659751 is an equidigital number, since it uses as much as digits as its factorization.

745659751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1323000, while the sum is 49.

The square root of 745659751 is about 27306.7711566197. The cubic root of 745659751 is about 906.8042923082.

The spelling of 745659751 in words is "seven hundred forty-five million, six hundred fifty-nine thousand, seven hundred fifty-one".