129753752 has 16 divisors (see below), whose sum is σ = 247879440. Its totient is φ = 63652576.

The previous prime is 129753751. The next prime is 129753763. The reversal of 129753752 is 257357921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129753751) 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, 152588 + ... + 153435.

It is an arithmetic number, because the mean of its divisors is an integer number (15492465).

Almost surely, 2^129753752 is an apocalyptic number.

It is an amenable number.

129753752 is a deficient number, since it is larger than the sum of its proper divisors (118125688).

129753752 is a wasteful number, since it uses less digits than its factorization.

129753752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306082 (or 306078 counting only the distinct ones).

The product of its digits is 132300, while the sum is 41.

The square root of 129753752 is about 11390.9504432247. The cubic root of 129753752 is about 506.2596427163.

The spelling of 129753752 in words is "one hundred twenty-nine million, seven hundred fifty-three thousand, seven hundred fifty-two".