724436149 has 2 divisors, whose sum is σ = 724436150. Its totient is φ = 724436148.

The previous prime is 724436137. The next prime is 724436173. The reversal of 724436149 is 941634427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 702515025 + 21921124 = 26505^2 + 4682^2 .

It is a cyclic number.

It is not a de Polignac number, because 724436149 - 2²⁹ = 187565237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724434149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362218074 + 362218075.

It is an arithmetic number, because the mean of its divisors is an integer number (362218075).

Almost surely, 2^724436149 is an apocalyptic number.

It is an amenable number.

724436149 is a deficient number, since it is larger than the sum of its proper divisors (1).

724436149 is an equidigital number, since it uses as much as digits as its factorization.

724436149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 724436149 is about 26915.3515488838. The cubic root of 724436149 is about 898.1179390338.

The spelling of 724436149 in words is "seven hundred twenty-four million, four hundred thirty-six thousand, one hundred forty-nine".