45135557 has 4 divisors (see below), whose sum is σ = 46095936. Its totient is φ = 44175180.

The previous prime is 45135551. The next prime is 45135581. The reversal of 45135557 is 75553154.

45135557 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, and also an emirpimes, since its reverse is a distinct semiprime: 75553154 = 2 ⋅37776577.

It is a cyclic number.

It is not a de Polignac number, because 45135557 - 2¹⁶ = 45070021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45135551) 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, 480119 + ... + 480212.

It is an arithmetic number, because the mean of its divisors is an integer number (11523984).

Almost surely, 2^45135557 is an apocalyptic number.

45135557 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

45135557 is a deficient number, since it is larger than the sum of its proper divisors (960379).

45135557 is an equidigital number, since it uses as much as digits as its factorization.

45135557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960378.

The product of its digits is 52500, while the sum is 35.

The square root of 45135557 is about 6718.3001570338. The cubic root of 45135557 is about 356.0461292958.

The spelling of 45135557 in words is "forty-five million, one hundred thirty-five thousand, five hundred fifty-seven".