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20122153 is a prime number
BaseRepresentation
bin100110011000…
…0101000101001
31101212022101221
41030300220221
520122402103
61555142041
7333015112
oct114605051
941768357
1020122153
11103a4087
1268a4921
134226bcc
14295b209
151b771bd
hex1330a29

20122153 has 2 divisors, whose sum is σ = 20122154. Its totient is φ = 20122152.

The previous prime is 20122147. The next prime is 20122199. The reversal of 20122153 is 35122102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19333609 + 788544 = 4397^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122153 - 221 = 18025001 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061076 + 10061077.

It is an arithmetic number, because the mean of its divisors is an integer number (10061077).

Almost surely, 220122153 is an apocalyptic number.

It is an amenable number.

20122153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122153 is an equidigital number, since it uses as much as digits as its factorization.

20122153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20122153 is about 4485.7722857943. The cubic root of 20122153 is about 271.9932641426.

Adding to 20122153 its reverse (35122102), we get a palindrome (55244255).

The spelling of 20122153 in words is "twenty million, one hundred twenty-two thousand, one hundred fifty-three".