1145719 has 8 divisors (see below), whose sum is σ = 1232640. Its totient is φ = 1061496.

The previous prime is 1145713. The next prime is 1145723. The reversal of 1145719 is 9175411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145719 - 2¹³ = 1137527 is a prime.

It is a super-2 number, since 2×1145719² = 2625344053922, which contains 22 as substring.

It is a Duffinian number.

1145719 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (154080).

2^1145719 is an apocalyptic number.

1145719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1145719 is a deficient number, since it is larger than the sum of its proper divisors (86921).

1145719 is a wasteful number, since it uses less digits than its factorization.

1145719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349.

The product of its digits is 1260, while the sum is 28.

The square root of 1145719 is about 1070.3826418622. The cubic root of 1145719 is about 104.6387890559.

It can be divided in two parts, 11457 and 19, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 1145719 in words is "one million, one hundred forty-five thousand, seven hundred nineteen".