129472627 has 4 divisors (see below), whose sum is σ = 129881376. Its totient is φ = 129063880.

The previous prime is 129472621. The next prime is 129472633. The reversal of 129472627 is 726274921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726274921 = 599 ⋅1212479.

It is an interprime number because it is at equal distance from previous prime (129472621) and next prime (129472633).

It is a cyclic number.

It is not a de Polignac number, because 129472627 - 2³ = 129472619 is a prime.

It is a super-2 number, since 2×129472627² = 33526322284562258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129472627.

It is not an unprimeable number, because it can be changed into a prime (129472621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203899 + ... + 204532.

It is an arithmetic number, because the mean of its divisors is an integer number (32470344).

Almost surely, 2^129472627 is an apocalyptic number.

129472627 is a deficient number, since it is larger than the sum of its proper divisors (408749).

129472627 is an equidigital number, since it uses as much as digits as its factorization.

129472627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408748.

The product of its digits is 84672, while the sum is 40.

The square root of 129472627 is about 11378.6039126072. The cubic root of 129472627 is about 505.8937569543.

The spelling of 129472627 in words is "one hundred twenty-nine million, four hundred seventy-two thousand, six hundred twenty-seven".