1491061 has 8 divisors (see below), whose sum is σ = 1751904. Its totient is φ = 1251120.

The previous prime is 1491041. The next prime is 1491079. The reversal of 1491061 is 1601941.

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

It is not a de Polignac number, because 1491061 - 2⁷ = 1490933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5071 + ... + 5356.

It is an arithmetic number, because the mean of its divisors is an integer number (218988).

2^1491061 is an apocalyptic number.

1491061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1491061 is a deficient number, since it is larger than the sum of its proper divisors (260843).

1491061 is a wasteful number, since it uses less digits than its factorization.

1491061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10451.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1491061 is about 1221.0900867667. The cubic root of 1491061 is about 114.2435799293.

The spelling of 1491061 in words is "one million, four hundred ninety-one thousand, sixty-one".