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126092881 is a prime number
BaseRepresentation
bin1111000010000…
…00011001010001
322210021011220201
413201000121101
5224234433011
620302335201
73060525505
oct741003121
9283234821
10126092881
11651a34a2
123628a501
132017b295
1412a64305
15b10acc1
hex7840651

126092881 has 2 divisors, whose sum is σ = 126092882. Its totient is φ = 126092880.

The previous prime is 126092821. The next prime is 126092891. The reversal of 126092881 is 188290621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91987281 + 34105600 = 9591^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 126092881 - 223 = 117704273 is a prime.

It is a super-2 number, since 2×1260928812 = 31798829277760322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126092881.

It is not a weakly prime, because it can be changed into another prime (126092801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63046440 + 63046441.

It is an arithmetic number, because the mean of its divisors is an integer number (63046441).

Almost surely, 2126092881 is an apocalyptic number.

It is an amenable number.

126092881 is a deficient number, since it is larger than the sum of its proper divisors (1).

126092881 is an equidigital number, since it uses as much as digits as its factorization.

126092881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 126092881 is about 11229.1086467270. The cubic root of 126092881 is about 501.4529484585.

The spelling of 126092881 in words is "one hundred twenty-six million, ninety-two thousand, eight hundred eighty-one".