1138737253 has 2 divisors, whose sum is σ = 1138737254. Its totient is φ = 1138737252.

The previous prime is 1138737247. The next prime is 1138737283. The reversal of 1138737253 is 3527378311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1130169924 + 8567329 = 33618^2 + 2927^2 .

It is a cyclic number.

It is not a de Polignac number, because 1138737253 - 2⁵ = 1138737221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1138737283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569368626 + 569368627.

It is an arithmetic number, because the mean of its divisors is an integer number (569368627).

Almost surely, 2^1138737253 is an apocalyptic number.

It is an amenable number.

1138737253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138737253 is an equidigital number, since it uses as much as digits as its factorization.

1138737253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 1138737253 is about 33745.1811819110. The cubic root of 1138737253 is about 1044.2580764317.

The spelling of 1138737253 in words is "one billion, one hundred thirty-eight million, seven hundred thirty-seven thousand, two hundred fifty-three".