724710145 has 8 divisors (see below), whose sum is σ = 899640360. Its totient is φ = 559776000.

The previous prime is 724710131. The next prime is 724710169. The reversal of 724710145 is 541017427.

It can be written as a sum of positive squares in 4 ways, for example, as 49126081 + 675584064 = 7009^2 + 25992^2 .

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

It is not a de Polignac number, because 724710145 - 2⁹ = 724709633 is a prime.

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, 2498856 + ... + 2499145.

It is an arithmetic number, because the mean of its divisors is an integer number (112455045).

Almost surely, 2^724710145 is an apocalyptic number.

It is an amenable number.

724710145 is a deficient number, since it is larger than the sum of its proper divisors (174930215).

724710145 is a wasteful number, since it uses less digits than its factorization.

724710145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4998035.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 724710145 is about 26920.4410253621. The cubic root of 724710145 is about 898.2311533847.

The spelling of 724710145 in words is "seven hundred twenty-four million, seven hundred ten thousand, one hundred forty-five".