46145521 has 8 divisors (see below), whose sum is σ = 48695040. Its totient is φ = 43641312.

The previous prime is 46145507. The next prime is 46145537. The reversal of 46145521 is 12554164.

46145521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 46145521 - 2⁹ = 46145009 is a prime.

It is a super-2 number, since 2×46145521² = 4258818216722882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46145521.

It is not an unprimeable number, because it can be changed into a prime (46145581) 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 7 ways as a sum of consecutive naturals, for example, 9225 + ... + 13318.

It is an arithmetic number, because the mean of its divisors is an integer number (6086880).

Almost surely, 2^46145521 is an apocalyptic number.

It is an amenable number.

46145521 is a deficient number, since it is larger than the sum of its proper divisors (2549519).

46145521 is a wasteful number, since it uses less digits than its factorization.

46145521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22655.

The product of its digits is 4800, while the sum is 28.

The square root of 46145521 is about 6793.0494625021. The cubic root of 46145521 is about 358.6822217741.

Adding to 46145521 its reverse (12554164), we get a palindrome (58699685).

It can be divided in two parts, 46 and 145521, that multiplied together give a palindrome (6693966).

The spelling of 46145521 in words is "forty-six million, one hundred forty-five thousand, five hundred twenty-one".