152340143981 has 2 divisors, whose sum is σ = 152340143982. Its totient is φ = 152340143980.

The previous prime is 152340143953. The next prime is 152340144013. The reversal of 152340143981 is 189341043251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152204537956 + 135606025 = 390134^2 + 11645^2 .

It is a cyclic number.

It is not a de Polignac number, because 152340143981 - 2²² = 152335949677 is a prime.

It is a super-2 number, since 2×152340143981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152340143911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76170071990 + 76170071991.

It is an arithmetic number, because the mean of its divisors is an integer number (76170071991).

Almost surely, 2^152340143981 is an apocalyptic number.

It is an amenable number.

152340143981 is a deficient number, since it is larger than the sum of its proper divisors (1).

152340143981 is an equidigital number, since it uses as much as digits as its factorization.

152340143981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 152340143981 in words is "one hundred fifty-two billion, three hundred forty million, one hundred forty-three thousand, nine hundred eighty-one".