61541439 has 8 divisors (see below), whose sum is σ = 82159920. Its totient is φ = 40975296.

The previous prime is 61541423. The next prime is 61541461. The reversal of 61541439 is 93414516.

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

It is not a de Polignac number, because 61541439 - 2⁴ = 61541423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61541419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10252 + ... + 15105.

It is an arithmetic number, because the mean of its divisors is an integer number (10269990).

Almost surely, 2^61541439 is an apocalyptic number.

61541439 is a deficient number, since it is larger than the sum of its proper divisors (20618481).

61541439 is a wasteful number, since it uses less digits than its factorization.

61541439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26169.

The product of its digits is 12960, while the sum is 33.

The square root of 61541439 is about 7844.8351799130. The cubic root of 61541439 is about 394.8109740228.

The spelling of 61541439 in words is "sixty-one million, five hundred forty-one thousand, four hundred thirty-nine".