745126997 has 2 divisors, whose sum is σ = 745126998. Its totient is φ = 745126996.

The previous prime is 745126981. The next prime is 745126999. The reversal of 745126997 is 799621547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704690116 + 40436881 = 26546^2 + 6359^2 .

It is a cyclic number.

It is not a de Polignac number, because 745126997 - 2⁴ = 745126981 is a prime.

Together with 745126999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745126999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372563498 + 372563499.

It is an arithmetic number, because the mean of its divisors is an integer number (372563499).

Almost surely, 2^745126997 is an apocalyptic number.

It is an amenable number.

745126997 is a deficient number, since it is larger than the sum of its proper divisors (1).

745126997 is an equidigital number, since it uses as much as digits as its factorization.

745126997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 50.

The square root of 745126997 is about 27297.0144338168. The cubic root of 745126997 is about 906.5882783627.

The spelling of 745126997 in words is "seven hundred forty-five million, one hundred twenty-six thousand, nine hundred ninety-seven".