102145540512424 has 32 divisors (see below), whose sum is σ = 193721367767400. Its totient is φ = 50489602836480.

The previous prime is 102145540512397. The next prime is 102145540512427. The reversal of 102145540512424 is 424215045541201.

It can be written as a sum of positive squares in 4 ways, for example, as 101086736556100 + 1058803956324 = 10054190^2 + 1028982^2 .

It is a super-2 number, since 2×102145540512424² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102145540512427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193093719 + ... + 193621990.

Almost surely, 2^{102145540512424} is an apocalyptic number.

It is an amenable number.

102145540512424 is a deficient number, since it is larger than the sum of its proper divisors (91575827254976).

102145540512424 is a wasteful number, since it uses less digits than its factorization.

102145540512424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386716093 (or 386716089 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 40.

The spelling of 102145540512424 in words is "one hundred two trillion, one hundred forty-five billion, five hundred forty million, five hundred twelve thousand, four hundred twenty-four".