67120145 has 8 divisors (see below), whose sum is σ = 80614656. Its totient is φ = 53649136.

The previous prime is 67120117. The next prime is 67120153. The reversal of 67120145 is 54102176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67120145 - 2¹⁴ = 67103761 is a prime.

It is a super-2 number, since 2×67120145² = 9010227729642050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184 + ... + 11646.

It is an arithmetic number, because the mean of its divisors is an integer number (10076832).

Almost surely, 2^67120145 is an apocalyptic number.

It is an amenable number.

67120145 is a deficient number, since it is larger than the sum of its proper divisors (13494511).

67120145 is a wasteful number, since it uses less digits than its factorization.

67120145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11751.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 67120145 is about 8192.6885086643. The cubic root of 67120145 is about 406.3974385553.

The spelling of 67120145 in words is "sixty-seven million, one hundred twenty thousand, one hundred forty-five".