1453042491 has 8 divisors (see below), whose sum is σ = 1938048000. Its totient is φ = 968365992.

The previous prime is 1453042471. The next prime is 1453042511. The reversal of 1453042491 is 1942403541.

It is an interprime number because it is at equal distance from previous prime (1453042471) and next prime (1453042511).

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

It is not a de Polignac number, because 1453042491 - 2⁹ = 1453041979 is a prime.

It is a super-2 number, since 2×1453042491² = 4222664961302970162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1453042421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71755 + ... + 89748.

It is an arithmetic number, because the mean of its divisors is an integer number (242256000).

Almost surely, 2^1453042491 is an apocalyptic number.

1453042491 is a deficient number, since it is larger than the sum of its proper divisors (485005509).

1453042491 is a wasteful number, since it uses less digits than its factorization.

1453042491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164505.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1453042491 is about 38118.7944589018. The cubic root of 1453042491 is about 1132.6422859202.

The spelling of 1453042491 in words is "one billion, four hundred fifty-three million, forty-two thousand, four hundred ninety-one".