1864315253 has 2 divisors, whose sum is σ = 1864315254. Its totient is φ = 1864315252.

The previous prime is 1864315241. The next prime is 1864315259. The reversal of 1864315253 is 3525134681.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952154449 + 912160804 = 30857^2 + 30202^2 .

It is a cyclic number.

It is not a de Polignac number, because 1864315253 - 2⁴ = 1864315237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1864315259) 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, 932157626 + 932157627.

It is an arithmetic number, because the mean of its divisors is an integer number (932157627).

Almost surely, 2^1864315253 is an apocalyptic number.

It is an amenable number.

1864315253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1864315253 is an equidigital number, since it uses as much as digits as its factorization.

1864315253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 38.

The square root of 1864315253 is about 43177.7170887948. The cubic root of 1864315253 is about 1230.7592758451.

The spelling of 1864315253 in words is "one billion, eight hundred sixty-four million, three hundred fifteen thousand, two hundred fifty-three".