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23148148169 is a prime number
BaseRepresentation
bin10101100011101111…
…001011010111001001
32012202020022202200002
4111203233023113021
5334401411220134
614344545052345
71446430004306
oct254357132711
965666282602
1023148148169
1198a9587373
1245a03270b5
13224b9901c3
1411984540ad
1590732587e
hex563bcb5c9

23148148169 has 2 divisors, whose sum is σ = 23148148170. Its totient is φ = 23148148168.

The previous prime is 23148148147. The next prime is 23148148207. The reversal of 23148148169 is 96184184132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13551986569 + 9596161600 = 116413^2 + 97960^2 .

It is a cyclic number.

It is not a de Polignac number, because 23148148169 - 224 = 23131370953 is a prime.

It is a super-2 number, since 2×231481481692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23148148109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11574074084 + 11574074085.

It is an arithmetic number, because the mean of its divisors is an integer number (11574074085).

Almost surely, 223148148169 is an apocalyptic number.

It is an amenable number.

23148148169 is a deficient number, since it is larger than the sum of its proper divisors (1).

23148148169 is an equidigital number, since it uses as much as digits as its factorization.

23148148169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 47.

The spelling of 23148148169 in words is "twenty-three billion, one hundred forty-eight million, one hundred forty-eight thousand, one hundred sixty-nine".