61099451 has 8 divisors (see below), whose sum is σ = 69876480. Its totient is φ = 52334568.

The previous prime is 61099429. The next prime is 61099453. The reversal of 61099451 is 15499016.

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 61099451 - 2¹⁴ = 61083067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61099453) 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, 14570 + ... + 18288.

It is an arithmetic number, because the mean of its divisors is an integer number (8734560).

Almost surely, 2^61099451 is an apocalyptic number.

61099451 is a deficient number, since it is larger than the sum of its proper divisors (8777029).

61099451 is a wasteful number, since it uses less digits than its factorization.

61099451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 61099451 is about 7816.6137809156. The cubic root of 61099451 is about 393.8635303431.

The spelling of 61099451 in words is "sixty-one million, ninety-nine thousand, four hundred fifty-one".