103523240 has 32 divisors (see below), whose sum is σ = 235198080. Its totient is φ = 41005632.

The previous prime is 103523239. The next prime is 103523261. The reversal of 103523240 is 42325301.

It is a happy number.

It is a super-2 number, since 2×103523240² = 21434122440195200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 8444 + ... + 16683.

It is an arithmetic number, because the mean of its divisors is an integer number (7349940).

Almost surely, 2^103523240 is an apocalyptic number.

103523240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103523240 is an abundant number, since it is smaller than the sum of its proper divisors (131674840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103523240 is a wasteful number, since it uses less digits than its factorization.

103523240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25241 (or 25237 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 103523240 is about 10174.6370942653. The cubic root of 103523240 is about 469.5472326018.

Adding to 103523240 its reverse (42325301), we get a palindrome (145848541).

The spelling of 103523240 in words is "one hundred three million, five hundred twenty-three thousand, two hundred forty".