1142900 has 36 divisors (see below), whose sum is σ = 2708160. Its totient is φ = 415200.

The previous prime is 1142891. The next prime is 1142909. The reversal of 1142900 is 92411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1142891) and next prime (1142909).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 581 + ... + 1619.

2^1142900 is an apocalyptic number.

1142900 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 1142900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354080).

1142900 is an abundant number, since it is smaller than the sum of its proper divisors (1565260).

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

1142900 is a wasteful number, since it uses less digits than its factorization.

1142900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1142900 is about 1069.0650120549. The cubic root of 1142900 is about 104.5528985935.

The spelling of 1142900 in words is "one million, one hundred forty-two thousand, nine hundred".