1145120426 has 32 divisors (see below), whose sum is σ = 1775779200. Its totient is φ = 553608000.

The previous prime is 1145120399. The next prime is 1145120441. The reversal of 1145120426 is 6240215411.

It is a super-2 number, since 2×1145120426² = 2622601580084842952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145120395 and 1145120404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2451845 + ... + 2452311.

It is an arithmetic number, because the mean of its divisors is an integer number (55493100).

Almost surely, 2^1145120426 is an apocalyptic number.

1145120426 is a deficient number, since it is larger than the sum of its proper divisors (630658774).

1145120426 is a wasteful number, since it uses less digits than its factorization.

1145120426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1145120426 is about 33839.6280416910. The cubic root of 1145120426 is about 1046.2056324625.

Adding to 1145120426 its reverse (6240215411), we get a palindrome (7385335837).

The spelling of 1145120426 in words is "one billion, one hundred forty-five million, one hundred twenty thousand, four hundred twenty-six".