129151953 has 12 divisors (see below), whose sum is σ = 213203328. Its totient is φ = 73801080.

The previous prime is 129151951. The next prime is 129151963. The reversal of 129151953 is 359151921.

129151953 is a `hidden beast` number, since 1 + 2 + 91 + 519 + 53 = 666.

It is not a de Polignac number, because 129151953 - 2¹ = 129151951 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129151951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1024953 + ... + 1025078.

It is an arithmetic number, because the mean of its divisors is an integer number (17766944).

Almost surely, 2^129151953 is an apocalyptic number.

It is an amenable number.

129151953 is a deficient number, since it is larger than the sum of its proper divisors (84051375).

129151953 is a wasteful number, since it uses less digits than its factorization.

129151953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050044 (or 2050041 counting only the distinct ones).

The product of its digits is 12150, while the sum is 36.

The square root of 129151953 is about 11364.5040806891. The cubic root of 129151953 is about 505.4757507291.

The spelling of 129151953 in words is "one hundred twenty-nine million, one hundred fifty-one thousand, nine hundred fifty-three".