61445854 has 8 divisors (see below), whose sum is σ = 97590528. Its totient is φ = 28915680.

The previous prime is 61445831. The next prime is 61445887. The reversal of 61445854 is 45854416.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903582 + ... + 903649.

It is an arithmetic number, because the mean of its divisors is an integer number (12198816).

Almost surely, 2^61445854 is an apocalyptic number.

61445854 is a deficient number, since it is larger than the sum of its proper divisors (36144674).

61445854 is a wasteful number, since it uses less digits than its factorization.

61445854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807250.

The product of its digits is 76800, while the sum is 37.

The square root of 61445854 is about 7838.7405876199. The cubic root of 61445854 is about 394.6064637913.

The spelling of 61445854 in words is "sixty-one million, four hundred forty-five thousand, eight hundred fifty-four".