132243621947 has 2 divisors, whose sum is σ = 132243621948. Its totient is φ = 132243621946.

The previous prime is 132243621943. The next prime is 132243621949. The reversal of 132243621947 is 749126342231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 132243621947 - 2² = 132243621943 is a prime.

It is a super-2 number, since 2×132243621947² (a number of 23 digits) contains 22 as substring.

Together with 132243621949, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 132243621898 and 132243621907.

It is not a weakly prime, because it can be changed into another prime (132243621941) 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, 66121810973 + 66121810974.

It is an arithmetic number, because the mean of its divisors is an integer number (66121810974).

Almost surely, 2^132243621947 is an apocalyptic number.

132243621947 is a deficient number, since it is larger than the sum of its proper divisors (1).

132243621947 is an equidigital number, since it uses as much as digits as its factorization.

132243621947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The spelling of 132243621947 in words is "one hundred thirty-two billion, two hundred forty-three million, six hundred twenty-one thousand, nine hundred forty-seven".