1154450140 has 24 divisors (see below), whose sum is σ = 2425569552. Its totient is φ = 461546880.

The previous prime is 1154450123. The next prime is 1154450159. The reversal of 1154450140 is 410544511.

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, 29235 + ... + 56245.

It is an arithmetic number, because the mean of its divisors is an integer number (101065398).

Almost surely, 2^1154450140 is an apocalyptic number.

1154450140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154450140 is an abundant number, since it is smaller than the sum of its proper divisors (1271119412).

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

1154450140 is a wasteful number, since it uses less digits than its factorization.

1154450140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29157 (or 29155 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1154450140 is about 33977.2002966695. The cubic root of 1154450140 is about 1049.0392239309.

Adding to 1154450140 its reverse (410544511), we get a palindrome (1564994651).

The spelling of 1154450140 in words is "one billion, one hundred fifty-four million, four hundred fifty thousand, one hundred forty".