1269023530 has 16 divisors (see below), whose sum is σ = 2288739240. Its totient is φ = 506610112.

The previous prime is 1269023519. The next prime is 1269023563. The reversal of 1269023530 is 353209621.

It can be written as a sum of positive squares in 4 ways, for example, as 1231237921 + 37785609 = 35089^2 + 6147^2 .

It is a super-2 number, since 2×1269023530² = 3220841439387321800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1269023492 and 1269023501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119569 + ... + 129748.

Almost surely, 2^1269023530 is an apocalyptic number.

1269023530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1269023530 is a deficient number, since it is larger than the sum of its proper divisors (1019715710).

1269023530 is a wasteful number, since it uses less digits than its factorization.

1269023530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249833.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 1269023530 is about 35623.3565234945. The cubic root of 1269023530 is about 1082.6545155430.

The spelling of 1269023530 in words is "one billion, two hundred sixty-nine million, twenty-three thousand, five hundred thirty".