61538041 has 6 divisors (see below), whose sum is σ = 64330490. Its totient is φ = 58861968.

The previous prime is 61538033. The next prime is 61538053. The reversal of 61538041 is 14083516.

It can be written as a sum of positive squares in only one way, i.e., 61152400 + 385641 = 7820^2 + 621^2 .

It is not a de Polignac number, because 61538041 - 2³ = 61538033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61538641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57636 + ... + 58693.

Almost surely, 2^61538041 is an apocalyptic number.

It is an amenable number.

61538041 is a deficient number, since it is larger than the sum of its proper divisors (2792449).

61538041 is a wasteful number, since it uses less digits than its factorization.

61538041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116375 (or 116352 counting only the distinct ones).

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

The square root of 61538041 is about 7844.6186013088. The cubic root of 61538041 is about 394.8037074157.

The spelling of 61538041 in words is "sixty-one million, five hundred thirty-eight thousand, forty-one".