68393151 has 6 divisors (see below), whose sum is σ = 98790120. Its totient is φ = 45595428.

The previous prime is 68393147. The next prime is 68393197. The reversal of 68393151 is 15139386.

It is a happy number.

It is not a de Polignac number, because 68393151 - 2² = 68393147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68393111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3799611 + ... + 3799628.

It is an arithmetic number, because the mean of its divisors is an integer number (16465020).

Almost surely, 2^68393151 is an apocalyptic number.

68393151 is a deficient number, since it is larger than the sum of its proper divisors (30396969).

68393151 is a wasteful number, since it uses less digits than its factorization.

68393151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599245 (or 7599242 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 68393151 is about 8270.0151753186. The cubic root of 68393151 is about 408.9506200310.

The spelling of 68393151 in words is "sixty-eight million, three hundred ninety-three thousand, one hundred fifty-one".