75412134 has 72 divisors (see below), whose sum is σ = 194143248. Its totient is φ = 21520080.

The previous prime is 75412123. The next prime is 75412157. The reversal of 75412134 is 43121457.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 75412098 and 75412107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 91444 + ... + 92264.

It is an arithmetic number, because the mean of its divisors is an integer number (2696434).

Almost surely, 2^75412134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75412134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97071624).

75412134 is an abundant number, since it is smaller than the sum of its proper divisors (118731114).

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

75412134 is an frugal number, since it uses more digits than its factorization.

75412134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 833 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 75412134 is about 8684.0160064339. The cubic root of 75412134 is about 422.4873826513.

The spelling of 75412134 in words is "seventy-five million, four hundred twelve thousand, one hundred thirty-four".