103141521 has 18 divisors (see below), whose sum is σ = 173306562. Its totient is φ = 58937760.

The previous prime is 103141483. The next prime is 103141523. The reversal of 103141521 is 125141301.

103141521 is a `hidden beast` number, since 1 + 0 + 3 + 141 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101606400 + 1535121 = 10080^2 + 1239^2 .

It is not a de Polignac number, because 103141521 - 2⁶ = 103141457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103141494 and 103141503.

It is not an unprimeable number, because it can be changed into a prime (103141523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 116500 + ... + 117381.

Almost surely, 2^103141521 is an apocalyptic number.

It is an amenable number.

103141521 is a deficient number, since it is larger than the sum of its proper divisors (70165041).

103141521 is a wasteful number, since it uses less digits than its factorization.

103141521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233901 (or 233891 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 103141521 is about 10155.8614110276. The cubic root of 103141521 is about 468.9694047020.

Adding to 103141521 its reverse (125141301), we get a palindrome (228282822).

The spelling of 103141521 in words is "one hundred three million, one hundred forty-one thousand, five hundred twenty-one".