53140123 has 4 divisors (see below), whose sum is σ = 53277120. Its totient is φ = 53003128.

The previous prime is 53140121. The next prime is 53140133. The reversal of 53140123 is 32104135.

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

It is a cyclic number.

It is not a de Polignac number, because 53140123 - 2¹ = 53140121 is a prime.

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 53140123.

It is not an unprimeable number, because it can be changed into a prime (53140121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67915 + ... + 68692.

It is an arithmetic number, because the mean of its divisors is an integer number (13319280).

Almost surely, 2^53140123 is an apocalyptic number.

53140123 is a deficient number, since it is larger than the sum of its proper divisors (136997).

53140123 is a wasteful number, since it uses less digits than its factorization.

53140123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136996.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 53140123 is about 7289.7272239776. The cubic root of 53140123 is about 375.9593168409.

Adding to 53140123 its reverse (32104135), we get a palindrome (85244258).

The spelling of 53140123 in words is "fifty-three million, one hundred forty thousand, one hundred twenty-three".