45990061 has 8 divisors (see below), whose sum is σ = 50463000. Its totient is φ = 41650752.

The previous prime is 45990059. The next prime is 45990067. The reversal of 45990061 is 16009954.

It can be written as a sum of positive squares in 4 ways, for example, as 6375625 + 39614436 = 2525^2 + 6294^2 .

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

It is not a de Polignac number, because 45990061 - 2¹ = 45990059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45989999 and 45990026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45990067) 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, 32686 + ... + 34063.

It is an arithmetic number, because the mean of its divisors is an integer number (6307875).

Almost surely, 2^45990061 is an apocalyptic number.

It is an amenable number.

45990061 is a deficient number, since it is larger than the sum of its proper divisors (4472939).

45990061 is a wasteful number, since it uses less digits than its factorization.

45990061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66815.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 45990061 is about 6781.5972307414. The cubic root of 45990061 is about 358.2789795089.

The spelling of 45990061 in words is "forty-five million, nine hundred ninety thousand, sixty-one".