745071851 has 2 divisors, whose sum is σ = 745071852. Its totient is φ = 745071850.

The previous prime is 745071823. The next prime is 745071853. The reversal of 745071851 is 158170547.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 745071851 - 2²² = 740877547 is a prime.

It is a Sophie Germain prime.

Together with 745071853, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_38462339 and since 745071851 and 38462339 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (745071853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372535925 + 372535926.

It is an arithmetic number, because the mean of its divisors is an integer number (372535926).

Almost surely, 2^745071851 is an apocalyptic number.

745071851 is a deficient number, since it is larger than the sum of its proper divisors (1).

745071851 is an equidigital number, since it uses as much as digits as its factorization.

745071851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 745071851 is about 27296.0043046597. The cubic root of 745071851 is about 906.5659126224.

The spelling of 745071851 in words is "seven hundred forty-five million, seventy-one thousand, eight hundred fifty-one".