103240557 has 24 divisors (see below), whose sum is σ = 170730560. Its totient is φ = 58890240.

The previous prime is 103240523. The next prime is 103240559. The reversal of 103240557 is 755042301.

It is a happy number.

103240557 is a `hidden beast` number, since 103 + 2 + 4 + 0 + 557 = 666.

It is not a de Polignac number, because 103240557 - 2⁷ = 103240429 is a prime.

It is a super-2 number, since 2×103240557² = 21317225219340498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103240557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103240559) 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, 47382 + ... + 49512.

Almost surely, 2^103240557 is an apocalyptic number.

It is an amenable number.

103240557 is a deficient number, since it is larger than the sum of its proper divisors (67490003).

103240557 is a wasteful number, since it uses less digits than its factorization.

103240557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913 (or 2910 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 103240557 is about 10160.7360461730. The cubic root of 103240557 is about 469.1194574194.

Adding to 103240557 its reverse (755042301), we get a palindrome (858282858).

The spelling of 103240557 in words is "one hundred three million, two hundred forty thousand, five hundred fifty-seven".