624473137 has 2 divisors, whose sum is σ = 624473138. Its totient is φ = 624473136.

The previous prime is 624473131. The next prime is 624473147. The reversal of 624473137 is 731374426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 612612001 + 11861136 = 24751^2 + 3444^2 .

It is a cyclic number.

It is not a de Polignac number, because 624473137 - 2¹⁹ = 623948849 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 624473096 and 624473105.

It is not a weakly prime, because it can be changed into another prime (624473131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312236568 + 312236569.

It is an arithmetic number, because the mean of its divisors is an integer number (312236569).

Almost surely, 2^624473137 is an apocalyptic number.

It is an amenable number.

624473137 is a deficient number, since it is larger than the sum of its proper divisors (1).

624473137 is an equidigital number, since it uses as much as digits as its factorization.

624473137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 37.

The square root of 624473137 is about 24989.4605183865. The cubic root of 624473137 is about 854.7476596505.

The spelling of 624473137 in words is "six hundred twenty-four million, four hundred seventy-three thousand, one hundred thirty-seven".