724575121 has 16 divisors (see below), whose sum is σ = 775664640. Its totient is φ = 675339840.

The previous prime is 724575109. The next prime is 724575133. The reversal of 724575121 is 121575427.

It is an interprime number because it is at equal distance from previous prime (724575109) and next prime (724575133).

It is a cyclic number.

It is not a de Polignac number, because 724575121 - 2¹³ = 724566929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (724575191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500020 + ... + 501466.

It is an arithmetic number, because the mean of its divisors is an integer number (48479040).

Almost surely, 2^724575121 is an apocalyptic number.

It is an amenable number.

724575121 is a deficient number, since it is larger than the sum of its proper divisors (51089519).

724575121 is a wasteful number, since it uses less digits than its factorization.

724575121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064.

The product of its digits is 19600, while the sum is 34.

The square root of 724575121 is about 26917.9330744394. The cubic root of 724575121 is about 898.1753654272.

The spelling of 724575121 in words is "seven hundred twenty-four million, five hundred seventy-five thousand, one hundred twenty-one".