312225523 has 2 divisors, whose sum is σ = 312225524. Its totient is φ = 312225522.

The previous prime is 312225517. The next prime is 312225533. The reversal of 312225523 is 325522213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312225523 - 2¹³ = 312217331 is a prime.

It is not a weakly prime, because it can be changed into another prime (312225533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156112761 + 156112762.

It is an arithmetic number, because the mean of its divisors is an integer number (156112762).

Almost surely, 2^312225523 is an apocalyptic number.

312225523 is a deficient number, since it is larger than the sum of its proper divisors (1).

312225523 is an equidigital number, since it uses as much as digits as its factorization.

312225523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 312225523 is about 17669.9044422996. The cubic root of 312225523 is about 678.4056672310.

Adding to 312225523 its reverse (325522213), we get a palindrome (637747736).

The spelling of 312225523 in words is "three hundred twelve million, two hundred twenty-five thousand, five hundred twenty-three".