75129496 has 64 divisors (see below), whose sum is σ = 161330400. Its totient is φ = 32514048.

The previous prime is 75129493. The next prime is 75129497. The reversal of 75129496 is 69492157.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75129493) 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, 381270 + ... + 381466.

Almost surely, 2^75129496 is an apocalyptic number.

75129496 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75129496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80665200).

75129496 is an abundant number, since it is smaller than the sum of its proper divisors (86200904).

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

75129496 is a wasteful number, since it uses less digits than its factorization.

75129496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 424 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 75129496 is about 8667.7272684366. The cubic root of 75129496 is about 421.9589067748.

It can be divided in two parts, 75129 and 496, that added together give a square (75625 = 275²).

The spelling of 75129496 in words is "seventy-five million, one hundred twenty-nine thousand, four hundred ninety-six".