731482145 has 8 divisors (see below), whose sum is σ = 879969960. Its totient is φ = 583724800.

The previous prime is 731482139. The next prime is 731482183. The reversal of 731482145 is 541284137.

It can be written as a sum of positive squares in 4 ways, for example, as 460188304 + 271293841 = 21452^2 + 16471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 731482145 - 2¹⁸ = 731220001 is a prime.

It is a super-2 number, since 2×731482145² = 1070132256907602050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180410 + ... + 184419.

It is an arithmetic number, because the mean of its divisors is an integer number (109996245).

Almost surely, 2^731482145 is an apocalyptic number.

It is an amenable number.

731482145 is a deficient number, since it is larger than the sum of its proper divisors (148487815).

731482145 is a wasteful number, since it uses less digits than its factorization.

731482145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365235.

The product of its digits is 26880, while the sum is 35.

The square root of 731482145 is about 27045.9265879356. The cubic root of 731482145 is about 901.0203017266.

The spelling of 731482145 in words is "seven hundred thirty-one million, four hundred eighty-two thousand, one hundred forty-five".