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132515161 = 322141141
BaseRepresentation
bin1111110011000…
…00010101011001
3100020100110121221
413321200111121
5232410441121
621052132041
73166234402
oct771402531
9306313557
10132515161
116888a669
1238467021
13215b954c
14138569a9
15b978b41
hex7e60559

132515161 has 4 divisors (see below), whose sum is σ = 132559524. Its totient is φ = 132470800.

The previous prime is 132515107. The next prime is 132515171. The reversal of 132515161 is 161515231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161515231 = 934117291.

It can be written as a sum of positive squares in 2 ways, for example, as 89415936 + 43099225 = 9456^2 + 6565^2 .

It is a cyclic number.

It is not a de Polignac number, because 132515161 - 215 = 132482393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132515171) 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, 17350 + ... + 23791.

It is an arithmetic number, because the mean of its divisors is an integer number (33139881).

Almost surely, 2132515161 is an apocalyptic number.

It is an amenable number.

132515161 is a deficient number, since it is larger than the sum of its proper divisors (44363).

132515161 is an equidigital number, since it uses as much as digits as its factorization.

132515161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44362.

The product of its digits is 900, while the sum is 25.

The square root of 132515161 is about 11511.5229661414. The cubic root of 132515161 is about 509.8258549349.

The spelling of 132515161 in words is "one hundred thirty-two million, five hundred fifteen thousand, one hundred sixty-one".

Divisors: 1 3221 41141 132515161