61403073 has 8 divisors (see below), whose sum is σ = 81961536. Its totient is φ = 40890000.

The previous prime is 61403059. The next prime is 61403081. The reversal of 61403073 is 37030416.

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

It is not a de Polignac number, because 61403073 - 2¹⁰ = 61402049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61402073) 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, 8053 + ... + 13698.

It is an arithmetic number, because the mean of its divisors is an integer number (10245192).

Almost surely, 2^61403073 is an apocalyptic number.

It is an amenable number.

61403073 is a deficient number, since it is larger than the sum of its proper divisors (20558463).

61403073 is a wasteful number, since it uses less digits than its factorization.

61403073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22695.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 61403073 is about 7836.0112940194. The cubic root of 61403073 is about 394.5148623925.

Adding to 61403073 its reverse (37030416), we get a palindrome (98433489).

The spelling of 61403073 in words is "sixty-one million, four hundred three thousand, seventy-three".