103121541 has 24 divisors (see below), whose sum is σ = 159508440. Its totient is φ = 63968256.

The previous prime is 103121533. The next prime is 103121563. The reversal of 103121541 is 145121301.

103121541 is a `hidden beast` number, since 1 + 0 + 3 + 121 + 541 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47320641 + 55800900 = 6879^2 + 7470^2 .

It is not a de Polignac number, because 103121541 - 2³ = 103121533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103121591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9831 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (6646185).

Almost surely, 2^103121541 is an apocalyptic number.

It is an amenable number.

103121541 is a deficient number, since it is larger than the sum of its proper divisors (56386899).

103121541 is a wasteful number, since it uses less digits than its factorization.

103121541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7685 (or 7682 counting only the distinct ones).

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

The square root of 103121541 is about 10154.8776949799. The cubic root of 103121541 is about 468.9391207009.

Adding to 103121541 its reverse (145121301), we get a palindrome (248242842).

The spelling of 103121541 in words is "one hundred three million, one hundred twenty-one thousand, five hundred forty-one".