1354643091 has 12 divisors (see below), whose sum is σ = 1959407632. Its totient is φ = 901848816.

The previous prime is 1354643089. The next prime is 1354643119. The reversal of 1354643091 is 1903464531.

1354643091 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 643 + 0 + 9 + 1 = 666.

1354643091 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1354643091 - 2¹ = 1354643089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1354643791) 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, 96976 + ... + 110061.

Almost surely, 2^1354643091 is an apocalyptic number.

1354643091 is a deficient number, since it is larger than the sum of its proper divisors (604764541).

1354643091 is a wasteful number, since it uses less digits than its factorization.

1354643091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207770 (or 207767 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1354643091 is about 36805.4763724096. The cubic root of 1354643091 is about 1106.4750585291.

The spelling of 1354643091 in words is "one billion, three hundred fifty-four million, six hundred forty-three thousand, ninety-one".