61103451 has 4 divisors (see below), whose sum is σ = 81471272. Its totient is φ = 40735632.

The previous prime is 61103447. The next prime is 61103513. The reversal of 61103451 is 15430116.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61103451 - 2² = 61103447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61103051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10183906 + ... + 10183911.

It is an arithmetic number, because the mean of its divisors is an integer number (20367818).

Almost surely, 2^61103451 is an apocalyptic number.

61103451 is a deficient number, since it is larger than the sum of its proper divisors (20367821).

61103451 is a wasteful number, since it uses less digits than its factorization.

61103451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20367820.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 61103451 is about 7816.8696419986. The cubic root of 61103451 is about 393.8721251816.

Adding to 61103451 its reverse (15430116), we get a palindrome (76533567).

The spelling of 61103451 in words is "sixty-one million, one hundred three thousand, four hundred fifty-one".