61233409 has 8 divisors (see below), whose sum is σ = 66199040. Its totient is φ = 56442096.

The previous prime is 61233373. The next prime is 61233437. The reversal of 61233409 is 90433216.

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

It is a cyclic number.

It is not a de Polignac number, because 61233409 - 2⁷ = 61233281 is a prime.

It is a super-2 number, since 2×61233409² = 7499060755522562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61233449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42849 + ... + 44254.

It is an arithmetic number, because the mean of its divisors is an integer number (8274880).

Almost surely, 2^61233409 is an apocalyptic number.

It is an amenable number.

61233409 is a deficient number, since it is larger than the sum of its proper divisors (4965631).

61233409 is a wasteful number, since it uses less digits than its factorization.

61233409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87159.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 61233409 is about 7825.1778893518. The cubic root of 61233409 is about 394.1511633629.

The spelling of 61233409 in words is "sixty-one million, two hundred thirty-three thousand, four hundred nine".