Search a number
-
+
1975063231 is a prime number
BaseRepresentation
bin111010110111001…
…0001001010111111
312002122102121102001
41311232101022333
513021104010411
6523552243131
766641521561
oct16556211277
95078377361
101975063231
11923965269
124715404a7
13256255b8b
1414a447331
15b85d8dc1
hex75b912bf

1975063231 has 2 divisors, whose sum is σ = 1975063232. Its totient is φ = 1975063230.

The previous prime is 1975063177. The next prime is 1975063283. The reversal of 1975063231 is 1323605791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1975063231 - 223 = 1966674623 is a prime.

It is a super-2 number, since 2×19750632312 = 7801749532896318722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1975063331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987531615 + 987531616.

It is an arithmetic number, because the mean of its divisors is an integer number (987531616).

Almost surely, 21975063231 is an apocalyptic number.

1975063231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1975063231 is an equidigital number, since it uses as much as digits as its factorization.

1975063231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 1975063231 is about 44441.6834852146. The cubic root of 1975063231 is about 1254.6627413945.

The spelling of 1975063231 in words is "one billion, nine hundred seventy-five million, sixty-three thousand, two hundred thirty-one".