61407445 has 8 divisors (see below), whose sum is σ = 80388000. Its totient is φ = 44659920.

The previous prime is 61407433. The next prime is 61407469. The reversal of 61407445 is 54470416.

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

It is not a de Polignac number, because 61407445 - 2⁷ = 61407317 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 558195 + ... + 558304.

It is an arithmetic number, because the mean of its divisors is an integer number (10048500).

Almost surely, 2^61407445 is an apocalyptic number.

It is an amenable number.

61407445 is a deficient number, since it is larger than the sum of its proper divisors (18980555).

61407445 is a wasteful number, since it uses less digits than its factorization.

61407445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116515.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 61407445 is about 7836.2902575134. The cubic root of 61407445 is about 394.5242255397.

The spelling of 61407445 in words is "sixty-one million, four hundred seven thousand, four hundred forty-five".