45121423 has 8 divisors (see below), whose sum is σ = 47748096. Its totient is φ = 42550200.

The previous prime is 45121411. The next prime is 45121429. The reversal of 45121423 is 32412154.

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-45121423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45121394 and 45121403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45121429) 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, 12183 + ... + 15448.

It is an arithmetic number, because the mean of its divisors is an integer number (5968512).

Almost surely, 2^45121423 is an apocalyptic number.

45121423 is a deficient number, since it is larger than the sum of its proper divisors (2626673).

45121423 is a wasteful number, since it uses less digits than its factorization.

45121423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27725.

The product of its digits is 960, while the sum is 22.

The square root of 45121423 is about 6717.2481716846. The cubic root of 45121423 is about 356.0089606590.

Adding to 45121423 its reverse (32412154), we get a palindrome (77533577).

The spelling of 45121423 in words is "forty-five million, one hundred twenty-one thousand, four hundred twenty-three".