61072445 has 8 divisors (see below), whose sum is σ = 83756544. Its totient is φ = 41878224.

The previous prime is 61072433. The next prime is 61072469. The reversal of 61072445 is 54427016.

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 61072445 - 2¹⁰ = 61071421 is a prime.

It is a Duffinian number.

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, 872429 + ... + 872498.

It is an arithmetic number, because the mean of its divisors is an integer number (10469568).

Almost surely, 2^61072445 is an apocalyptic number.

It is an amenable number.

61072445 is a deficient number, since it is larger than the sum of its proper divisors (22684099).

61072445 is a wasteful number, since it uses less digits than its factorization.

61072445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744939.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 61072445 is about 7814.8861156129. The cubic root of 61072445 is about 393.8054924728.

The spelling of 61072445 in words is "sixty-one million, seventy-two thousand, four hundred forty-five".