67745061 has 6 divisors (see below), whose sum is σ = 97853990. Its totient is φ = 45163368.

The previous prime is 67745047. The next prime is 67745063. The reversal of 67745061 is 16054776.

It can be written as a sum of positive squares in only one way, i.e., 41796225 + 25948836 = 6465^2 + 5094^2 .

It is not a de Polignac number, because 67745061 - 2¹⁰ = 67744037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67745063) 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 5 ways as a sum of consecutive naturals, for example, 3763606 + ... + 3763623.

Almost surely, 2^67745061 is an apocalyptic number.

It is an amenable number.

67745061 is a deficient number, since it is larger than the sum of its proper divisors (30108929).

67745061 is a wasteful number, since it uses less digits than its factorization.

67745061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7527235 (or 7527232 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 67745061 is about 8230.7387882255. The cubic root of 67745061 is about 407.6547865689.

The spelling of 67745061 in words is "sixty-seven million, seven hundred forty-five thousand, sixty-one".