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132888731 is a prime number
BaseRepresentation
bin1111110101110…
…11100010011011
3100021001110001212
413322323202123
5233004414411
621104133335
73202351463
oct772734233
9307043055
10132888731
11690152a8
123860724b
13216ba5b1
1413912ba3
15b9ee68b
hex7ebb89b

132888731 has 2 divisors, whose sum is σ = 132888732. Its totient is φ = 132888730.

The previous prime is 132888713. The next prime is 132888781. The reversal of 132888731 is 137888231.

Together with previous prime (132888713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 132888731 - 214 = 132872347 is a prime.

It is a super-2 number, since 2×1328887312 = 35318829653580722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (132888781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66444365 + 66444366.

It is an arithmetic number, because the mean of its divisors is an integer number (66444366).

Almost surely, 2132888731 is an apocalyptic number.

132888731 is a deficient number, since it is larger than the sum of its proper divisors (1).

132888731 is an equidigital number, since it uses as much as digits as its factorization.

132888731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 41.

The square root of 132888731 is about 11527.7374623124. The cubic root of 132888731 is about 510.3044843322.

The spelling of 132888731 in words is "one hundred thirty-two million, eight hundred eighty-eight thousand, seven hundred thirty-one".