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2130145 = 52318523
BaseRepresentation
bin1000001000000011100001
311000020000021
420020003201
51021131040
6113353441
724051223
oct10100341
94006007
102130145
111225456
12868881
13597754
143d6413
152c124a
hex2080e1

2130145 has 8 divisors (see below), whose sum is σ = 2667456. Its totient is φ = 1629936.

The previous prime is 2130133. The next prime is 2130169. The reversal of 2130145 is 5410312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2130145 - 221 = 32993 is a prime.

It is a Duffinian 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, 9147 + ... + 9376.

It is an arithmetic number, because the mean of its divisors is an integer number (333432).

22130145 is an apocalyptic number.

It is an amenable number.

2130145 is a deficient number, since it is larger than the sum of its proper divisors (537311).

2130145 is a wasteful number, since it uses less digits than its factorization.

2130145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18551.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2130145 is about 1459.5016272687. The cubic root of 2130145 is about 128.6677546807.

Adding to 2130145 its reverse (5410312), we get a palindrome (7540457).

It can be divided in two parts, 213014 and 5, that multiplied together give a triangular number (1065070 = T1459).

The spelling of 2130145 in words is "two million, one hundred thirty thousand, one hundred forty-five".

Divisors: 1 5 23 115 18523 92615 426029 2130145