61004535 has 16 divisors (see below), whose sum is σ = 102744960. Its totient is φ = 30823200.

The previous prime is 61004513. The next prime is 61004557. The reversal of 61004535 is 53540016.

It is an interprime number because it is at equal distance from previous prime (61004513) and next prime (61004557).

It is not a de Polignac number, because 61004535 - 2¹³ = 60996343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106741 + ... + 107310.

It is an arithmetic number, because the mean of its divisors is an integer number (6421560).

Almost surely, 2^61004535 is an apocalyptic number.

61004535 is a deficient number, since it is larger than the sum of its proper divisors (41740425).

61004535 is a wasteful number, since it uses less digits than its factorization.

61004535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214078.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 61004535 is about 7810.5399941361. The cubic root of 61004535 is about 393.6594732678.

The spelling of 61004535 in words is "sixty-one million, four thousand, five hundred thirty-five".