45661313 has 8 divisors (see below), whose sum is σ = 49183200. Its totient is φ = 42251328.

The previous prime is 45661267. The next prime is 45661387. The reversal of 45661313 is 31316654.

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 not a de Polignac number, because 45661313 - 2¹⁰ = 45660289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45661513) 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, 27128 + ... + 28761.

It is an arithmetic number, because the mean of its divisors is an integer number (6147900).

Almost surely, 2^45661313 is an apocalyptic number.

45661313 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

45661313 is a deficient number, since it is larger than the sum of its proper divisors (3521887).

45661313 is a wasteful number, since it uses less digits than its factorization.

45661313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55951.

The product of its digits is 6480, while the sum is 29.

The square root of 45661313 is about 6757.3155172746. The cubic root of 45661313 is about 357.4232492091.

Adding to 45661313 its reverse (31316654), we get a palindrome (76977967).

The spelling of 45661313 in words is "forty-five million, six hundred sixty-one thousand, three hundred thirteen".