1055142 has 36 divisors (see below), whose sum is σ = 2528604. Its totient is φ = 315360.

The previous prime is 1055141. The next prime is 1055143. The reversal of 1055142 is 2415501.

It is an interprime number because it is at equal distance from previous prime (1055141) and next prime (1055143).

It is a super-2 number, since 2×1055142² = 2226649280328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055141) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14418 + ... + 14490.

It is an arithmetic number, because the mean of its divisors is an integer number (70239).

2^1055142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264302).

1055142 is an abundant number, since it is smaller than the sum of its proper divisors (1473462).

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

1055142 is a wasteful number, since it uses less digits than its factorization.

1055142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1055142 is about 1027.2010514013. The cubic root of 1055142 is about 101.8052801854.

The spelling of 1055142 in words is "one million, fifty-five thousand, one hundred forty-two".