1153138454 has 8 divisors (see below), whose sum is σ = 1862762160. Its totient is φ = 532217736.

The previous prime is 1153138429. The next prime is 1153138463. The reversal of 1153138454 is 4548313511.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22175714 + ... + 22175765.

It is an arithmetic number, because the mean of its divisors is an integer number (232845270).

Almost surely, 2^1153138454 is an apocalyptic number.

1153138454 is a deficient number, since it is larger than the sum of its proper divisors (709623706).

1153138454 is a wasteful number, since it uses less digits than its factorization.

1153138454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44351494.

The product of its digits is 28800, while the sum is 35.

The square root of 1153138454 is about 33957.8923668711. The cubic root of 1153138454 is about 1048.6417673162.

The spelling of 1153138454 in words is "one billion, one hundred fifty-three million, one hundred thirty-eight thousand, four hundred fifty-four".