Search a number
-
+
122403481 is a prime number
BaseRepresentation
bin1110100101110…
…11101010011001
322112022202000021
413102323222121
5222313402411
620051310441
73014261314
oct722735231
9275282007
10122403481
1163103602
1234bab421
131c488bc5
141238397b
15ab2ca71
hex74bba99

122403481 has 2 divisors, whose sum is σ = 122403482. Its totient is φ = 122403480.

The previous prime is 122403473. The next prime is 122403517. The reversal of 122403481 is 184304221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86211225 + 36192256 = 9285^2 + 6016^2 .

It is a cyclic number.

It is not a de Polignac number, because 122403481 - 23 = 122403473 is a prime.

It is a super-2 number, since 2×1224034812 = 29965224321834722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122403431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61201740 + 61201741.

It is an arithmetic number, because the mean of its divisors is an integer number (61201741).

Almost surely, 2122403481 is an apocalyptic number.

It is an amenable number.

122403481 is a deficient number, since it is larger than the sum of its proper divisors (1).

122403481 is an equidigital number, since it uses as much as digits as its factorization.

122403481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 122403481 is about 11063.6106674087. The cubic root of 122403481 is about 496.5137229076.

The spelling of 122403481 in words is "one hundred twenty-two million, four hundred three thousand, four hundred eighty-one".