1099954 has 4 divisors (see below), whose sum is σ = 1649934. Its totient is φ = 549976.

The previous prime is 1099933. The next prime is 1099957. The reversal of 1099954 is 4599901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4599901 = 593 ⋅7757.

It can be written as a sum of positive squares in only one way, i.e., 683929 + 416025 = 827^2 + 645^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1099957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274987 + ... + 274990.

2^1099954 is an apocalyptic number.

1099954 is a deficient number, since it is larger than the sum of its proper divisors (549980).

1099954 is an equidigital number, since it uses as much as digits as its factorization.

1099954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549979.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 1099954 is about 1048.7869183013. The cubic root of 1099954 is about 103.2265725897.

The spelling of 1099954 in words is "one million, ninety-nine thousand, nine hundred fifty-four".