745431497 has 8 divisors (see below), whose sum is σ = 753889344. Its totient is φ = 736997328.

The previous prime is 745431473. The next prime is 745431499. The reversal of 745431497 is 794134547.

It is a happy number.

745431497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 745431497 - 2²⁴ = 728654281 is a prime.

It is a super-2 number, since 2×745431497² = 1111336233439322018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745431499) 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, 61718 + ... + 72800.

It is an arithmetic number, because the mean of its divisors is an integer number (94236168).

Almost surely, 2^745431497 is an apocalyptic number.

It is an amenable number.

745431497 is a deficient number, since it is larger than the sum of its proper divisors (8457847).

745431497 is a wasteful number, since it uses less digits than its factorization.

745431497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11839.

The product of its digits is 423360, while the sum is 44.

The square root of 745431497 is about 27302.5913971550. The cubic root of 745431497 is about 906.7117555401.

The spelling of 745431497 in words is "seven hundred forty-five million, four hundred thirty-one thousand, four hundred ninety-seven".