45138061 has 2 divisors, whose sum is σ = 45138062. Its totient is φ = 45138060.

The previous prime is 45138059. The next prime is 45138073. The reversal of 45138061 is 16083154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34445161 + 10692900 = 5869^2 + 3270^2 .

It is a cyclic number.

It is not a de Polignac number, because 45138061 - 2¹ = 45138059 is a prime.

Together with 45138059, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2726047 and since 45138061 and 2726047 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45138361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22569030 + 22569031.

It is an arithmetic number, because the mean of its divisors is an integer number (22569031).

Almost surely, 2^45138061 is an apocalyptic number.

It is an amenable number.

45138061 is a deficient number, since it is larger than the sum of its proper divisors (1).

45138061 is an equidigital number, since it uses as much as digits as its factorization.

45138061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 45138061 is about 6718.4865111125. The cubic root of 45138061 is about 356.0527133364.

The spelling of 45138061 in words is "forty-five million, one hundred thirty-eight thousand, sixty-one".