75103140 has 48 divisors (see below), whose sum is σ = 240331392. Its totient is φ = 17166336.

The previous prime is 75103117. The next prime is 75103141. The reversal of 75103140 is 4130157.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (75103141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88989 + ... + 89828.

It is an arithmetic number, because the mean of its divisors is an integer number (5006904).

Almost surely, 2^75103140 is an apocalyptic number.

75103140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75103140 is an abundant number, since it is smaller than the sum of its proper divisors (165228252).

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

75103140 is a wasteful number, since it uses less digits than its factorization.

75103140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178836 (or 178834 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 75103140 is about 8666.2067826703. The cubic root of 75103140 is about 421.9095588699.

Adding to 75103140 its reverse (4130157), we get a palindrome (79233297).

The spelling of 75103140 in words is "seventy-five million, one hundred three thousand, one hundred forty".