45240231 has 8 divisors (see below), whose sum is σ = 60392304. Its totient is φ = 30124160.

The previous prime is 45240211. The next prime is 45240259. The reversal of 45240231 is 13204254.

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

It is a cyclic number.

It is not a de Polignac number, because 45240231 - 2¹³ = 45232039 is a prime.

It is a super-2 number, since 2×45240231² = 4093357001866722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45240198 and 45240207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45240211) 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, 5916 + ... + 11201.

It is an arithmetic number, because the mean of its divisors is an integer number (7549038).

Almost surely, 2^45240231 is an apocalyptic number.

45240231 is a deficient number, since it is larger than the sum of its proper divisors (15152073).

45240231 is a wasteful number, since it uses less digits than its factorization.

45240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18001.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 45240231 is about 6726.0858602905. The cubic root of 45240231 is about 356.3211526701.

Adding to 45240231 its reverse (13204254), we get a palindrome (58444485).

The spelling of 45240231 in words is "forty-five million, two hundred forty thousand, two hundred thirty-one".