916219253 has 2 divisors, whose sum is σ = 916219254. Its totient is φ = 916219252.

The previous prime is 916219151. The next prime is 916219261. The reversal of 916219253 is 352912619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529782289 + 386436964 = 23017^2 + 19658^2 .

It is a cyclic number.

It is not a de Polignac number, because 916219253 - 2⁸ = 916218997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916219553) 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, 458109626 + 458109627.

It is an arithmetic number, because the mean of its divisors is an integer number (458109627).

Almost surely, 2^916219253 is an apocalyptic number.

It is an amenable number.

916219253 is a deficient number, since it is larger than the sum of its proper divisors (1).

916219253 is an equidigital number, since it uses as much as digits as its factorization.

916219253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 916219253 is about 30269.1138456348. The cubic root of 916219253 is about 971.2547099657.

The spelling of 916219253 in words is "nine hundred sixteen million, two hundred nineteen thousand, two hundred fifty-three".