75129116 has 12 divisors (see below), whose sum is σ = 138395880. Its totient is φ = 35587440.

The previous prime is 75129113. The next prime is 75129121. The reversal of 75129116 is 61192157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75129113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494195 + ... + 494346.

It is an arithmetic number, because the mean of its divisors is an integer number (11532990).

Almost surely, 2^75129116 is an apocalyptic number.

75129116 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

75129116 is a deficient number, since it is larger than the sum of its proper divisors (63266764).

75129116 is a wasteful number, since it uses less digits than its factorization.

75129116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988564 (or 988562 counting only the distinct ones).

The product of its digits is 3780, while the sum is 32.

The square root of 75129116 is about 8667.7053480145. The cubic root of 75129116 is about 421.9581953602.

The spelling of 75129116 in words is "seventy-five million, one hundred twenty-nine thousand, one hundred sixteen".