1154131000 has 128 divisors (see below), whose sum is σ = 2965248000. Its totient is φ = 416976000.

The previous prime is 1154130959. The next prime is 1154131049. The reversal of 1154131000 is 1314511.

It is a super-2 number, since 2×1154131000² = 2664036730322000000, 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 31 ways as a sum of consecutive naturals, for example, 2628781 + ... + 2629219.

It is an arithmetic number, because the mean of its divisors is an integer number (23166000).

Almost surely, 2^1154131000 is an apocalyptic number.

1154131000 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 1154131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482624000).

1154131000 is an abundant number, since it is smaller than the sum of its proper divisors (1811117000).

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

1154131000 is a wasteful number, since it uses less digits than its factorization.

1154131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1154131000 is about 33972.5035874603. The cubic root of 1154131000 is about 1048.9425484022.

Adding to 1154131000 its reverse (1314511), we get a palindrome (1155445511).

The spelling of 1154131000 in words is "one billion, one hundred fifty-four million, one hundred thirty-one thousand".