61243535 has 8 divisors (see below), whose sum is σ = 74527776. Its totient is φ = 48304480.

The previous prime is 61243519. The next prime is 61243579. The reversal of 61243535 is 53534216.

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

It is not a de Polignac number, because 61243535 - 2⁴ = 61243519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61243498 and 61243507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85904 + ... + 86613.

It is an arithmetic number, because the mean of its divisors is an integer number (9315972).

Almost surely, 2^61243535 is an apocalyptic number.

61243535 is a deficient number, since it is larger than the sum of its proper divisors (13284241).

61243535 is a wasteful number, since it uses less digits than its factorization.

61243535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172593.

The product of its digits is 10800, while the sum is 29.

The square root of 61243535 is about 7825.8248766504. The cubic root of 61243535 is about 394.1728887291.

The spelling of 61243535 in words is "sixty-one million, two hundred forty-three thousand, five hundred thirty-five".