45231261 has 4 divisors (see below), whose sum is σ = 60308352. Its totient is φ = 30154172.

The previous prime is 45231259. The next prime is 45231281. The reversal of 45231261 is 16213254.

45231261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45231261 - 2¹ = 45231259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45231211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7538541 + ... + 7538546.

It is an arithmetic number, because the mean of its divisors is an integer number (15077088).

Almost surely, 2^45231261 is an apocalyptic number.

It is an amenable number.

45231261 is a deficient number, since it is larger than the sum of its proper divisors (15077091).

45231261 is a wasteful number, since it uses less digits than its factorization.

45231261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15077090.

The product of its digits is 1440, while the sum is 24.

The square root of 45231261 is about 6725.4190204031. The cubic root of 45231261 is about 356.2976012725.

It can be divided in two parts, 452 and 31261, that added together give a palindrome (31713).

The spelling of 45231261 in words is "forty-five million, two hundred thirty-one thousand, two hundred sixty-one".