45090929 has 4 divisors (see below), whose sum is σ = 48559476. Its totient is φ = 41622384.

The previous prime is 45090917. The next prime is 45090931. The reversal of 45090929 is 92909054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18258529 + 26832400 = 4273^2 + 5180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45090929 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45090892 and 45090901.

It is not an unprimeable number, because it can be changed into a prime (45090959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734254 + ... + 1734279.

It is an arithmetic number, because the mean of its divisors is an integer number (12139869).

Almost surely, 2^45090929 is an apocalyptic number.

It is an amenable number.

45090929 is a deficient number, since it is larger than the sum of its proper divisors (3468547).

45090929 is a wasteful number, since it uses less digits than its factorization.

45090929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468546.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 45090929 is about 6714.9779597553. The cubic root of 45090929 is about 355.9287431552.

The spelling of 45090929 in words is "forty-five million, ninety thousand, nine hundred twenty-nine".