724135031 has 2 divisors, whose sum is σ = 724135032. Its totient is φ = 724135030.

The previous prime is 724135003. The next prime is 724135051. The reversal of 724135031 is 130531427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 724135031 - 2¹⁰ = 724134007 is a prime.

It is a super-2 number, since 2×724135031² = 1048743086242741922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724135051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362067515 + 362067516.

It is an arithmetic number, because the mean of its divisors is an integer number (362067516).

Almost surely, 2^724135031 is an apocalyptic number.

724135031 is a deficient number, since it is larger than the sum of its proper divisors (1).

724135031 is an equidigital number, since it uses as much as digits as its factorization.

724135031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 724135031 is about 26909.7571709594. The cubic root of 724135031 is about 897.9934850214.

Adding to 724135031 its reverse (130531427), we get a palindrome (854666458).

The spelling of 724135031 in words is "seven hundred twenty-four million, one hundred thirty-five thousand, thirty-one".