1091954 has 8 divisors (see below), whose sum is σ = 1642368. Its totient is φ = 544500.

The previous prime is 1091939. The next prime is 1091957. The reversal of 1091954 is 4591901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1091957) 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, 1079 + ... + 1829.

It is an arithmetic number, because the mean of its divisors is an integer number (205296).

2^1091954 is an apocalyptic number.

1091954 is a deficient number, since it is larger than the sum of its proper divisors (550414).

1091954 is an equidigital number, since it uses as much as digits as its factorization.

1091954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 1091954 is about 1044.9660281559. The cubic root of 1091954 is about 102.9757067161.

The spelling of 1091954 in words is "one million, ninety-one thousand, nine hundred fifty-four".