745012347 has 4 divisors (see below), whose sum is σ = 993349800. Its totient is φ = 496674896.

The previous prime is 745012321. The next prime is 745012351. The reversal of 745012347 is 743210547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743210547 = 3 ⋅247736849.

It is a cyclic number.

It is not a de Polignac number, because 745012347 - 2⁸ = 745012091 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (745012357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124168722 + ... + 124168727.

It is an arithmetic number, because the mean of its divisors is an integer number (248337450).

Almost surely, 2^745012347 is an apocalyptic number.

745012347 is a deficient number, since it is larger than the sum of its proper divisors (248337453).

745012347 is a wasteful number, since it uses less digits than its factorization.

745012347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248337452.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 745012347 is about 27294.9143065151. The cubic root of 745012347 is about 906.5417781562.

The spelling of 745012347 in words is "seven hundred forty-five million, twelve thousand, three hundred forty-seven".