724150901 has 4 divisors (see below), whose sum is σ = 729436812. Its totient is φ = 718864992.

The previous prime is 724150891. The next prime is 724150913. The reversal of 724150901 is 109051427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 526748401 + 197402500 = 22951^2 + 14050^2 .

It is a cyclic number.

It is not a de Polignac number, because 724150901 - 2²⁶ = 657042037 is a prime.

It is a super-2 number, since 2×724150901² = 1048789054838223602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724150961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2642750 + ... + 2643023.

It is an arithmetic number, because the mean of its divisors is an integer number (182359203).

Almost surely, 2^724150901 is an apocalyptic number.

It is an amenable number.

724150901 is a deficient number, since it is larger than the sum of its proper divisors (5285911).

724150901 is a wasteful number, since it uses less digits than its factorization.

724150901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285910.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 724150901 is about 26910.0520437995. The cubic root of 724150901 is about 898.0000450560. Note that the first 4 decimals are identical.

The spelling of 724150901 in words is "seven hundred twenty-four million, one hundred fifty thousand, nine hundred one".