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1025141 = 1378857
BaseRepresentation
bin11111010010001110101
31221002020012
43322101311
5230301031
633550005
711466515
oct3722165
91832205
101025141
11640227
12415305
1329b7c0
141c9845
15153b2b
hexfa475

1025141 has 4 divisors (see below), whose sum is σ = 1104012. Its totient is φ = 946272.

The previous prime is 1025137. The next prime is 1025147. The reversal of 1025141 is 1415201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1415201 = 6612141.

It can be written as a sum of positive squares in 2 ways, for example, as 206116 + 819025 = 454^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025141 - 22 = 1025137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39416 + ... + 39441.

It is an arithmetic number, because the mean of its divisors is an integer number (276003).

21025141 is an apocalyptic number.

It is an amenable number.

1025141 is a deficient number, since it is larger than the sum of its proper divisors (78871).

1025141 is an equidigital number, since it uses as much as digits as its factorization.

1025141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78870.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1025141 is about 1012.4924691078. The cubic root of 1025141 is about 100.8311068121.

The spelling of 1025141 in words is "one million, twenty-five thousand, one hundred forty-one".

Divisors: 1 13 78857 1025141