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151081 = 7113191
BaseRepresentation
bin100100111000101001
321200020121
4210320221
514313311
63123241
71166320
oct447051
9250217
10151081
11a3567
1273521
13539c8
143d0b7
152eb71
hex24e29

151081 has 8 divisors (see below), whose sum is σ = 175104. Its totient is φ = 127680.

The previous prime is 151057. The next prime is 151091. The reversal of 151081 is 180151.

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

It is not a de Polignac number, because 151081 - 25 = 151049 is a prime.

It is a super-2 number, since 2×1510812 = 45650937122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696 + ... + 886.

It is an arithmetic number, because the mean of its divisors is an integer number (21888).

2151081 is an apocalyptic number.

It is an amenable number.

151081 is a deficient number, since it is larger than the sum of its proper divisors (24023).

151081 is a wasteful number, since it uses less digits than its factorization.

151081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 151081 is about 388.6913942963. The cubic root of 151081 is about 53.2602601696.

The spelling of 151081 in words is "one hundred fifty-one thousand, eighty-one".

Divisors: 1 7 113 191 791 1337 21583 151081