Search a number
-
+
153125897 = 558127437
BaseRepresentation
bin10010010000010…
…00010000001001
3101200010121020112
421020020100021
5303200012042
623110004105
73536356121
oct1110102011
9350117215
10153125897
1179487831
1243346635
1325954952
141649dc81
15d69a982
hex9208409

153125897 has 4 divisors (see below), whose sum is σ = 153158916. Its totient is φ = 153092880.

The previous prime is 153125879. The next prime is 153125909. The reversal of 153125897 is 798521351.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64464841 + 88661056 = 8029^2 + 9416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-153125897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153125837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8138 + ... + 19299.

It is an arithmetic number, because the mean of its divisors is an integer number (38289729).

Almost surely, 2153125897 is an apocalyptic number.

It is an amenable number.

153125897 is a deficient number, since it is larger than the sum of its proper divisors (33019).

153125897 is an equidigital number, since it uses as much as digits as its factorization.

153125897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33018.

The product of its digits is 75600, while the sum is 41.

The square root of 153125897 is about 12374.4049149848. The cubic root of 153125897 is about 534.9947849377.

The spelling of 153125897 in words is "one hundred fifty-three million, one hundred twenty-five thousand, eight hundred ninety-seven".

Divisors: 1 5581 27437 153125897