1343452491 has 12 divisors (see below), whose sum is σ = 1940861832. Its totient is φ = 895487616.

The previous prime is 1343452477. The next prime is 1343452529. The reversal of 1343452491 is 1942543431.

1343452491 is a `hidden beast` number, since 1 + 3 + 43 + 4 + 524 + 91 = 666.

It is not a de Polignac number, because 1343452491 - 2¹⁰ = 1343451467 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1343452441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92475 + ... + 106011.

It is an arithmetic number, because the mean of its divisors is an integer number (161738486).

Almost surely, 2^1343452491 is an apocalyptic number.

1343452491 is a deficient number, since it is larger than the sum of its proper divisors (597409341).

1343452491 is a wasteful number, since it uses less digits than its factorization.

1343452491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24570 (or 24567 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1343452491 is about 36653.1375328225. The cubic root of 1343452491 is about 1103.4197954552.

The spelling of 1343452491 in words is "one billion, three hundred forty-three million, four hundred fifty-two thousand, four hundred ninety-one".