1145113751 has 4 divisors (see below), whose sum is σ = 1145250000. Its totient is φ = 1144977504.

The previous prime is 1145113747. The next prime is 1145113759. The reversal of 1145113751 is 1573115411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1145113751 - 2² = 1145113747 is a prime.

It is a super-2 number, since 2×1145113751² = 2622571005458580002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145113759) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54626 + ... + 72623.

It is an arithmetic number, because the mean of its divisors is an integer number (286312500).

Almost surely, 2^1145113751 is an apocalyptic number.

1145113751 is a deficient number, since it is larger than the sum of its proper divisors (136249).

1145113751 is an equidigital number, since it uses as much as digits as its factorization.

1145113751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136248.

The product of its digits is 2100, while the sum is 29.

The square root of 1145113751 is about 33839.5294145767. The cubic root of 1145113751 is about 1046.2035996526.

The spelling of 1145113751 in words is "one billion, one hundred forty-five million, one hundred thirteen thousand, seven hundred fifty-one".