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1027161 = 361409
BaseRepresentation
bin11111010110001011001
31221012000000
43322301121
5230332121
634003213
711505432
oct3726131
91835000
101027161
116417a3
12416509
1329c6b5
141ca489
15154526
hexfac59

1027161 has 14 divisors (see below), whose sum is σ = 1541130. Its totient is φ = 684288.

The previous prime is 1027153. The next prime is 1027163. The reversal of 1027161 is 1617201.

It can be written as a sum of positive squares in only one way, i.e., 571536 + 455625 = 756^2 + 675^2 .

It is not a de Polignac number, because 1027161 - 23 = 1027153 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1027163) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 25 + ... + 1433.

21027161 is an apocalyptic number.

It is an amenable number.

1027161 is a deficient number, since it is larger than the sum of its proper divisors (513969).

1027161 is an frugal number, since it uses more digits than its factorization.

1027161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1412 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1027161 is about 1013.4895164727. The cubic root of 1027161 is about 100.8972912692.

The spelling of 1027161 in words is "one million, twenty-seven thousand, one hundred sixty-one".