1154997 has 12 divisors (see below), whose sum is σ = 1766700. Its totient is φ = 724608.

The previous prime is 1154987. The next prime is 1155001. The reversal of 1154997 is 7994511.

It can be written as a sum of positive squares in 2 ways, for example, as 933156 + 221841 = 966^2 + 471^2 .

It is not a de Polignac number, because 1154997 - 2¹⁰ = 1153973 is a prime.

It is a super-4 number, since 4×1154997⁴ (a number of 25 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3622 + ... + 3927.

It is an arithmetic number, because the mean of its divisors is an integer number (147225).

2^1154997 is an apocalyptic number.

1154997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1154997 is a deficient number, since it is larger than the sum of its proper divisors (611703).

1154997 is a wasteful number, since it uses less digits than its factorization.

1154997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572 (or 7569 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 1154997 is about 1074.7078672830. The cubic root of 1154997 is about 104.9204840158.

The spelling of 1154997 in words is "one million, one hundred fifty-four thousand, nine hundred ninety-seven".