45412121 has 8 divisors (see below), whose sum is σ = 46425600. Its totient is φ = 44407440.

The previous prime is 45412091. The next prime is 45412127. The reversal of 45412121 is 12121454.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45412121 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 = 45412093 and 45412102.

It is not an unprimeable number, because it can be changed into a prime (45412127) 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, 8840 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (5803200).

Almost surely, 2^45412121 is an apocalyptic number.

It is an amenable number.

45412121 is a deficient number, since it is larger than the sum of its proper divisors (1013479).

45412121 is a wasteful number, since it uses less digits than its factorization.

45412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399.

The product of its digits is 320, while the sum is 20.

The square root of 45412121 is about 6738.8516083974. The cubic root of 45412121 is about 356.7718623915.

Adding to 45412121 its reverse (12121454), we get a palindrome (57533575).

The spelling of 45412121 in words is "forty-five million, four hundred twelve thousand, one hundred twenty-one".