1238652629 has 2 divisors, whose sum is σ = 1238652630. Its totient is φ = 1238652628.

The previous prime is 1238652563. The next prime is 1238652631. The reversal of 1238652629 is 9262568321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772006225 + 466646404 = 27785^2 + 21602^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238652629 - 2¹² = 1238648533 is a prime.

It is a super-2 number, since 2×1238652629² = 3068520670657223282, which contains 22 as substring.

Together with 1238652631, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1238652629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1238652659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619326314 + 619326315.

It is an arithmetic number, because the mean of its divisors is an integer number (619326315).

Almost surely, 2^1238652629 is an apocalyptic number.

It is an amenable number.

1238652629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238652629 is an equidigital number, since it uses as much as digits as its factorization.

1238652629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The square root of 1238652629 is about 35194.4971408884. The cubic root of 1238652629 is about 1073.9478088328.

The spelling of 1238652629 in words is "one billion, two hundred thirty-eight million, six hundred fifty-two thousand, six hundred twenty-nine".