1129391454 has 16 divisors (see below), whose sum is σ = 2295812880. Its totient is φ = 370292160.

The previous prime is 1129391449. The next prime is 1129391477. The reversal of 1129391454 is 4541939211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1542519 + ... + 1543250.

It is an arithmetic number, because the mean of its divisors is an integer number (143488305).

Almost surely, 2^1129391454 is an apocalyptic number.

1129391454 is an abundant number, since it is smaller than the sum of its proper divisors (1166421426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129391454 is a wasteful number, since it uses less digits than its factorization.

1129391454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085835.

The product of its digits is 38880, while the sum is 39.

The square root of 1129391454 is about 33606.4198331212. The cubic root of 1129391454 is about 1041.3934274462.

The spelling of 1129391454 in words is "one billion, one hundred twenty-nine million, three hundred ninety-one thousand, four hundred fifty-four".