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151225151 = 7118922067
BaseRepresentation
bin10010000001110…
…00001100111111
3101112120000220112
421000320030333
5302203201101
623001140235
73514251440
oct1100701477
9345500815
10151225151
11783a9770
124278a67b
132543a74c
14161272c7
15d4226bb
hex903833f

151225151 has 16 divisors (see below), whose sum is σ = 190667520. Its totient is φ = 116508480.

The previous prime is 151225147. The next prime is 151225157. The reversal of 151225151 is 151522151.

It is not a de Polignac number, because 151225151 - 22 = 151225147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151225157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4181 + ... + 17886.

It is an arithmetic number, because the mean of its divisors is an integer number (11916720).

Almost surely, 2151225151 is an apocalyptic number.

151225151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

151225151 is a deficient number, since it is larger than the sum of its proper divisors (39442369).

151225151 is a wasteful number, since it uses less digits than its factorization.

151225151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22174.

The product of its digits is 500, while the sum is 23.

The square root of 151225151 is about 12297.3635792393. The cubic root of 151225151 is about 532.7719386586.

The spelling of 151225151 in words is "one hundred fifty-one million, two hundred twenty-five thousand, one hundred fifty-one".

Divisors: 1 7 11 77 89 623 979 6853 22067 154469 242737 1699159 1963963 13747741 21603593 151225151