1491007 has 8 divisors (see below), whose sum is σ = 1759232. Its totient is φ = 1236600.

The previous prime is 1491001. The next prime is 1491013. The reversal of 1491007 is 7001941.

It is an interprime number because it is at equal distance from previous prime (1491001) and next prime (1491013).

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

It is a cyclic number.

It is not a de Polignac number, because 1491007 - 2³ = 1490999 is a prime.

It is a Duffinian number.

1491007 is a lucky number.

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 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, 3219 + ... + 3652.

It is an arithmetic number, because the mean of its divisors is an integer number (219904).

2^1491007 is an apocalyptic number.

1491007 is a deficient number, since it is larger than the sum of its proper divisors (268225).

1491007 is an equidigital number, since it uses as much as digits as its factorization.

1491007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6909.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1491007 is about 1221.0679751758. The cubic root of 1491007 is about 114.2422007709.

Adding to 1491007 its reverse (7001941), we get a palindrome (8492948).

It can be divided in two parts, 149 and 1007, that added together give a square (1156 = 34²).

The spelling of 1491007 in words is "one million, four hundred ninety-one thousand, seven".