1097142854 has 16 divisors (see below), whose sum is σ = 1666396368. Its totient is φ = 541719552.

The previous prime is 1097142779. The next prime is 1097142869. The reversal of 1097142854 is 4582417901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42509 + ... + 63255.

It is an arithmetic number, because the mean of its divisors is an integer number (104149773).

Almost surely, 2^1097142854 is an apocalyptic number.

1097142854 is a deficient number, since it is larger than the sum of its proper divisors (569253514).

1097142854 is a wasteful number, since it uses less digits than its factorization.

1097142854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21079.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1097142854 is about 33123.1468009910. The cubic root of 1097142854 is about 1031.3855905266.

The spelling of 1097142854 in words is "one billion, ninety-seven million, one hundred forty-two thousand, eight hundred fifty-four".