68210153 has 4 divisors (see below), whose sum is σ = 74411088. Its totient is φ = 62009220.

The previous prime is 68210143. The next prime is 68210159. The reversal of 68210153 is 35101286.

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 68210153 - 2¹⁰ = 68209129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68210159) 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, 3100451 + ... + 3100472.

It is an arithmetic number, because the mean of its divisors is an integer number (18602772).

Almost surely, 2^68210153 is an apocalyptic number.

It is an amenable number.

68210153 is a deficient number, since it is larger than the sum of its proper divisors (6200935).

68210153 is a wasteful number, since it uses less digits than its factorization.

68210153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200934.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 68210153 is about 8258.9438186732. The cubic root of 68210153 is about 408.5855542774.

The spelling of 68210153 in words is "sixty-eight million, two hundred ten thousand, one hundred fifty-three".