1131874000 has 40 divisors (see below), whose sum is σ = 2736876168. Its totient is φ = 452748800.

The previous prime is 1131873997. The next prime is 1131874013. The reversal of 1131874000 is 4781311.

It can be written as a sum of positive squares in 4 ways, for example, as 16581184 + 1115292816 = 4072^2 + 33396^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1131874000² = 2562277503752000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 280969 + ... + 284968.

Almost surely, 2^1131874000 is an apocalyptic number.

1131874000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131874000 is an abundant number, since it is smaller than the sum of its proper divisors (1605002168).

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

1131874000 is an equidigital number, since it uses as much as digits as its factorization.

1131874000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565960 (or 565944 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1131874000 is about 33643.3351497737. The cubic root of 1131874000 is about 1042.1559074262.

The spelling of 1131874000 in words is "one billion, one hundred thirty-one million, eight hundred seventy-four thousand".