1154890 has 16 divisors (see below), whose sum is σ = 2268000. Its totient is φ = 419920.

The previous prime is 1154887. The next prime is 1154893. The reversal of 1154890 is 984511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1154887) and next prime (1154893).

It is not an unprimeable number, because it can be changed into a prime (1154893) 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, 5140 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (141750).

2^1154890 is an apocalyptic number.

1154890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1154890 is a deficient number, since it is larger than the sum of its proper divisors (1113110).

1154890 is a wasteful number, since it uses less digits than its factorization.

1154890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1154890 is about 1074.6580851601. The cubic root of 1154890 is about 104.9172439386.

It can be divided in two parts, 115 and 4890, that added together give a palindrome (5005).

The spelling of 1154890 in words is "one million, one hundred fifty-four thousand, eight hundred ninety".