1126451969 has 4 divisors (see below), whose sum is σ = 1134556080. Its totient is φ = 1118347860.

The previous prime is 1126451947. The next prime is 1126451987. The reversal of 1126451969 is 9691546211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1126451969 - 2¹⁶ = 1126386433 is a prime.

It is a super-2 number, since 2×1126451969² = 2537788076927953922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126451269) 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, 4051847 + ... + 4052124.

It is an arithmetic number, because the mean of its divisors is an integer number (283639020).

Almost surely, 2^1126451969 is an apocalyptic number.

It is an amenable number.

1126451969 is a deficient number, since it is larger than the sum of its proper divisors (8104111).

1126451969 is an equidigital number, since it uses as much as digits as its factorization.

1126451969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8104110.

The product of its digits is 116640, while the sum is 44.

The square root of 1126451969 is about 33562.6573590352. The cubic root of 1126451969 is about 1040.4891587589.

The spelling of 1126451969 in words is "one billion, one hundred twenty-six million, four hundred fifty-one thousand, nine hundred sixty-nine".