1238016229 has 4 divisors (see below), whose sum is σ = 1241199180. Its totient is φ = 1234833280.

The previous prime is 1238016209. The next prime is 1238016253. The reversal of 1238016229 is 9226108321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 845064900 + 392951329 = 29070^2 + 19823^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238016229 - 2⁹ = 1238015717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1238016194 and 1238016203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238016209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590892 + ... + 1591669.

It is an arithmetic number, because the mean of its divisors is an integer number (310299795).

Almost surely, 2^1238016229 is an apocalyptic number.

It is an amenable number.

1238016229 is a deficient number, since it is larger than the sum of its proper divisors (3182951).

1238016229 is an equidigital number, since it uses as much as digits as its factorization.

1238016229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182950.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1238016229 is about 35185.4547931386. The cubic root of 1238016229 is about 1073.7638515625.

The spelling of 1238016229 in words is "one billion, two hundred thirty-eight million, sixteen thousand, two hundred twenty-nine".