1269913153 has 2 divisors, whose sum is σ = 1269913154. Its totient is φ = 1269913152.

The previous prime is 1269913147. The next prime is 1269913181. The reversal of 1269913153 is 3513199621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1003178929 + 266734224 = 31673^2 + 16332^2 .

It is an emirp because it is prime and its reverse (3513199621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1269913153 - 2⁹ = 1269912641 is a prime.

It is a super-2 number, since 2×1269913153² = 3225358832324802818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1269913123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634956576 + 634956577.

It is an arithmetic number, because the mean of its divisors is an integer number (634956577).

Almost surely, 2^1269913153 is an apocalyptic number.

It is an amenable number.

1269913153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1269913153 is an equidigital number, since it uses as much as digits as its factorization.

1269913153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 40.

The square root of 1269913153 is about 35635.8408487859. The cubic root of 1269913153 is about 1082.9074473856.

It can be divided in two parts, 12699 and 13153, that added together give a palindrome (25852).

The spelling of 1269913153 in words is "one billion, two hundred sixty-nine million, nine hundred thirteen thousand, one hundred fifty-three".