1523473213 has 2 divisors, whose sum is σ = 1523473214. Its totient is φ = 1523473212.

The previous prime is 1523473201. The next prime is 1523473223. The reversal of 1523473213 is 3123743251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1487027844 + 36445369 = 38562^2 + 6037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1523473213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1523473223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761736606 + 761736607.

It is an arithmetic number, because the mean of its divisors is an integer number (761736607).

Almost surely, 2^1523473213 is an apocalyptic number.

It is an amenable number.

1523473213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523473213 is an equidigital number, since it uses as much as digits as its factorization.

1523473213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 1523473213 is about 39031.6949798494. The cubic root of 1523473213 is about 1150.6545015338.

The spelling of 1523473213 in words is "one billion, five hundred twenty-three million, four hundred seventy-three thousand, two hundred thirteen".