70572129 has 4 divisors (see below), whose sum is σ = 94096176. Its totient is φ = 47048084.

The previous prime is 70572127. The next prime is 70572133. The reversal of 70572129 is 92127507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70572129 - 2¹ = 70572127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70572129.

It is not an unprimeable number, because it can be changed into a prime (70572127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11762019 + ... + 11762024.

It is an arithmetic number, because the mean of its divisors is an integer number (23524044).

Almost surely, 2^70572129 is an apocalyptic number.

It is an amenable number.

70572129 is a deficient number, since it is larger than the sum of its proper divisors (23524047).

70572129 is a wasteful number, since it uses less digits than its factorization.

70572129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23524046.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 70572129 is about 8400.7219332626. The cubic root of 70572129 is about 413.2482975575.

The spelling of 70572129 in words is "seventy million, five hundred seventy-two thousand, one hundred twenty-nine".