1145087 has 4 divisors (see below), whose sum is σ = 1151880. Its totient is φ = 1138296.

The previous prime is 1145077. The next prime is 1145093. The reversal of 1145087 is 7805411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7805411 = 1549 ⋅5039.

It is a cyclic number.

It is not a de Polignac number, because 1145087 - 2¹² = 1140991 is a prime.

It is a super-2 number, since 2×1145087² = 2622448475138, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145057) 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, 3137 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (287970).

2^1145087 is an apocalyptic number.

1145087 is a deficient number, since it is larger than the sum of its proper divisors (6793).

1145087 is an equidigital number, since it uses as much as digits as its factorization.

1145087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1145087 is about 1070.0873796097. The cubic root of 1145087 is about 104.6195452802.

The spelling of 1145087 in words is "one million, one hundred forty-five thousand, eighty-seven".