1125340719 has 4 divisors (see below), whose sum is σ = 1500454296. Its totient is φ = 750227144.

The previous prime is 1125340709. The next prime is 1125340729. The reversal of 1125340719 is 9170435211.

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

It is an interprime number because it is at equal distance from previous prime (1125340709) and next prime (1125340729).

It is a cyclic number.

It is not a de Polignac number, because 1125340719 - 2⁷ = 1125340591 is a prime.

It is a super-2 number, since 2×1125340719² = 2532783467678873922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1125340719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125340709) 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, 187556784 + ... + 187556789.

It is an arithmetic number, because the mean of its divisors is an integer number (375113574).

Almost surely, 2^1125340719 is an apocalyptic number.

1125340719 is a deficient number, since it is larger than the sum of its proper divisors (375113577).

1125340719 is an equidigital number, since it uses as much as digits as its factorization.

1125340719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375113576.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1125340719 is about 33546.0984169545. The cubic root of 1125340719 is about 1040.1468970880.

The spelling of 1125340719 in words is "one billion, one hundred twenty-five million, three hundred forty thousand, seven hundred nineteen".