1154229120 has 192 divisors, whose sum is σ = 4348272240. Its totient is φ = 279797760.

The previous prime is 1154229113. The next prime is 1154229143. The reversal of 1154229120 is 219224511.

1154229120 is a `hidden beast` number, since 11 + 542 + 2 + 91 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×1154229120² = 2664489722911948800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54252 + ... + 72468.

Almost surely, 2^1154229120 is an apocalyptic number.

1154229120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1154229120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2174136120).

1154229120 is an abundant number, since it is smaller than the sum of its proper divisors (3194043120).

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

1154229120 is a wasteful number, since it uses less digits than its factorization.

1154229120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18253 (or 18238 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1154229120 is about 33973.9476658218. The cubic root of 1154229120 is about 1048.9722733139.

The spelling of 1154229120 in words is "one billion, one hundred fifty-four million, two hundred twenty-nine thousand, one hundred twenty".