745478125 has 48 divisors (see below), whose sum is σ = 1086680448. Its totient is φ = 500760000.

The previous prime is 745478119. The next prime is 745478131. The reversal of 745478125 is 521874547.

It is an interprime number because it is at equal distance from previous prime (745478119) and next prime (745478131).

It is not a de Polignac number, because 745478125 - 2¹⁵ = 745445357 is a prime.

It is a super-3 number, since 3×745478125³ (a number of 28 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1159054 + ... + 1159696.

It is an arithmetic number, because the mean of its divisors is an integer number (22639176).

Almost surely, 2^745478125 is an apocalyptic number.

It is an amenable number.

745478125 is a deficient number, since it is larger than the sum of its proper divisors (341202323).

745478125 is an frugal number, since it uses more digits than its factorization.

745478125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 708 counting only the distinct ones).

The product of its digits is 313600, while the sum is 43.

The square root of 745478125 is about 27303.4452954201. The cubic root of 745478125 is about 906.7306605969.

The spelling of 745478125 in words is "seven hundred forty-five million, four hundred seventy-eight thousand, one hundred twenty-five".