1492991 has 8 divisors (see below), whose sum is σ = 1632384. Its totient is φ = 1359360.

The previous prime is 1492969. The next prime is 1492993. The reversal of 1492991 is 1992941.

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 1492991 - 2¹⁰ = 1491967 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492993) 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, 890 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (204048).

2^1492991 is an apocalyptic number.

1492991 is a deficient number, since it is larger than the sum of its proper divisors (139393).

1492991 is a wasteful number, since it uses less digits than its factorization.

1492991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881.

The product of its digits is 5832, while the sum is 35.

The square root of 1492991 is about 1221.8801086850. The cubic root of 1492991 is about 114.2928502241.

The spelling of 1492991 in words is "one million, four hundred ninety-two thousand, nine hundred ninety-one".