53123145 has 16 divisors (see below), whose sum is σ = 89471040. Its totient is φ = 26841024.

The previous prime is 53123141. The next prime is 53123153. The reversal of 53123145 is 54132135.

It is not a de Polignac number, because 53123145 - 2² = 53123141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53123141) 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 15 ways as a sum of consecutive naturals, for example, 92914 + ... + 93483.

It is an arithmetic number, because the mean of its divisors is an integer number (5591940).

Almost surely, 2^53123145 is an apocalyptic number.

It is an amenable number.

53123145 is a deficient number, since it is larger than the sum of its proper divisors (36347895).

53123145 is a wasteful number, since it uses less digits than its factorization.

53123145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186424.

The product of its digits is 1800, while the sum is 24.

The square root of 53123145 is about 7288.5626154956. The cubic root of 53123145 is about 375.9192735439.

The spelling of 53123145 in words is "fifty-three million, one hundred twenty-three thousand, one hundred forty-five".