1145390 has 16 divisors (see below), whose sum is σ = 2106432. Its totient is φ = 448224.

The previous prime is 1145387. The next prime is 1145393. The reversal of 1145390 is 935411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1145387) and next prime (1145393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145393) 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 7 ways as a sum of consecutive naturals, for example, 749 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (131652).

2^1145390 is an apocalyptic number.

1145390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145390 is a deficient number, since it is larger than the sum of its proper divisors (961042).

1145390 is a wasteful number, since it uses less digits than its factorization.

1145390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1145390 is about 1070.2289474687. The cubic root of 1145390 is about 104.6287722143.

The spelling of 1145390 in words is "one million, one hundred forty-five thousand, three hundred ninety".