129545356 has 24 divisors (see below), whose sum is σ = 234919440. Its totient is φ = 62467392.

The previous prime is 129545329. The next prime is 129545357. The reversal of 129545356 is 653545921.

It is a super-2 number, since 2×129545356² = 33563998522333472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (129545357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7330 + ... + 17686.

It is an arithmetic number, because the mean of its divisors is an integer number (9788310).

Almost surely, 2^129545356 is an apocalyptic number.

It is an amenable number.

129545356 is a deficient number, since it is larger than the sum of its proper divisors (105374084).

129545356 is a wasteful number, since it uses less digits than its factorization.

129545356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10473 (or 10471 counting only the distinct ones).

The product of its digits is 162000, while the sum is 40.

The square root of 129545356 is about 11381.7993305101. The cubic root of 129545356 is about 505.9884649008.

The spelling of 129545356 in words is "one hundred twenty-nine million, five hundred forty-five thousand, three hundred fifty-six".