140958481 has 2 divisors, whose sum is σ = 140958482. Its totient is φ = 140958480.

The previous prime is 140958479. The next prime is 140958551. The reversal of 140958481 is 184859041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134931456 + 6027025 = 11616^2 + 2455^2 .

It is a cyclic number.

It is not a de Polignac number, because 140958481 - 2¹ = 140958479 is a prime.

It is a super-2 number, since 2×140958481² = 39738586731654722, which contains 22 as substring.

Together with 140958479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (140952481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70479240 + 70479241.

It is an arithmetic number, because the mean of its divisors is an integer number (70479241).

Almost surely, 2^140958481 is an apocalyptic number.

It is an amenable number.

140958481 is a deficient number, since it is larger than the sum of its proper divisors (1).

140958481 is an equidigital number, since it uses as much as digits as its factorization.

140958481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 140958481 is about 11872.5936930394. The cubic root of 140958481 is about 520.4316940315.

The spelling of 140958481 in words is "one hundred forty million, nine hundred fifty-eight thousand, four hundred eighty-one".