61906045 has 8 divisors (see below), whose sum is σ = 75546720. Its totient is φ = 48685200.

The previous prime is 61906043. The next prime is 61906049. The reversal of 61906045 is 54060916.

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

It is not a de Polignac number, because 61906045 - 2¹ = 61906043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61905998 and 61906016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61906043) 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, 104631 + ... + 105220.

It is an arithmetic number, because the mean of its divisors is an integer number (9443340).

Almost surely, 2^61906045 is an apocalyptic number.

It is an amenable number.

61906045 is a deficient number, since it is larger than the sum of its proper divisors (13640675).

61906045 is a wasteful number, since it uses less digits than its factorization.

61906045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209915.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 61906045 is about 7868.0394635513. The cubic root of 61906045 is about 395.5891331693.

The spelling of 61906045 in words is "sixty-one million, nine hundred six thousand, forty-five".