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225154151 = 1373163987
BaseRepresentation
bin11010110101110…
…01010001100111
3120200200000102122
431122321101213
5430114413101
634201500155
75402531045
oct1532712147
9520600378
10225154151
11106103712
12634a165b
1337853711
1421c8d395
1514b7751b
hexd6b9467

225154151 has 4 divisors (see below), whose sum is σ = 225319512. Its totient is φ = 224988792.

The previous prime is 225154141. The next prime is 225154159. The reversal of 225154151 is 151451522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151451522 = 275725761.

It is a cyclic number.

It is not a de Polignac number, because 225154151 - 26 = 225154087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225154151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225154159) 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, 80621 + ... + 83366.

It is an arithmetic number, because the mean of its divisors is an integer number (56329878).

Almost surely, 2225154151 is an apocalyptic number.

225154151 is a deficient number, since it is larger than the sum of its proper divisors (165361).

225154151 is a wasteful number, since it uses less digits than its factorization.

225154151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165360.

The product of its digits is 2000, while the sum is 26.

The square root of 225154151 is about 15005.1374868743. The cubic root of 225154151 is about 608.3590682218.

The spelling of 225154151 in words is "two hundred twenty-five million, one hundred fifty-four thousand, one hundred fifty-one".

Divisors: 1 1373 163987 225154151