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126972583 is a prime number
BaseRepresentation
bin1111001000101…
…11001010100111
322211220212122021
413210113022213
5230001110313
620333244011
73101151313
oct744271247
9284825567
10126972583
1165744421
1236633607
13203c880a
1412c12b43
15b23178d
hex79172a7

126972583 has 2 divisors, whose sum is σ = 126972584. Its totient is φ = 126972582.

The previous prime is 126972569. The next prime is 126972619. The reversal of 126972583 is 385279621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126972583 - 213 = 126964391 is a prime.

It is a super-2 number, since 2×1269725832 = 32244073667383778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126972523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63486291 + 63486292.

It is an arithmetic number, because the mean of its divisors is an integer number (63486292).

Almost surely, 2126972583 is an apocalyptic number.

126972583 is a deficient number, since it is larger than the sum of its proper divisors (1).

126972583 is an equidigital number, since it uses as much as digits as its factorization.

126972583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 126972583 is about 11268.2111712552. The cubic root of 126972583 is about 502.6163957326.

The spelling of 126972583 in words is "one hundred twenty-six million, nine hundred seventy-two thousand, five hundred eighty-three".