1491029 has 4 divisors (see below), whose sum is σ = 1500684. Its totient is φ = 1481376.

The previous prime is 1491013. The next prime is 1491031. The reversal of 1491029 is 9201941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9201941 = 7 ⋅1314563.

It can be written as a sum of positive squares in 2 ways, for example, as 220900 + 1270129 = 470^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1491029 - 2⁴ = 1491013 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1490989 and 1491007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491079) 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, 4592 + ... + 4905.

It is an arithmetic number, because the mean of its divisors is an integer number (375171).

2^1491029 is an apocalyptic number.

It is an amenable number.

1491029 is a deficient number, since it is larger than the sum of its proper divisors (9655).

1491029 is an equidigital number, since it uses as much as digits as its factorization.

1491029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9654.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1491029 is about 1221.0769836501. The cubic root of 1491029 is about 114.2427626543.

It can be divided in two parts, 14 and 91029, that multiplied together give a triangular number (1274406 = T₁₅₉₆).

The spelling of 1491029 in words is "one million, four hundred ninety-one thousand, twenty-nine".