5145621 has 8 divisors (see below), whose sum is σ = 7388640. Its totient is φ = 3166512.

The previous prime is 5145619. The next prime is 5145631. The reversal of 5145621 is 1265415.

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

It is not a de Polignac number, because 5145621 - 2¹ = 5145619 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5145591 and 5145600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145601) 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, 65931 + ... + 66008.

It is an arithmetic number, because the mean of its divisors is an integer number (923580).

Almost surely, 2^5145621 is an apocalyptic number.

It is an amenable number.

5145621 is a deficient number, since it is larger than the sum of its proper divisors (2243019).

5145621 is a wasteful number, since it uses less digits than its factorization.

5145621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131955.

The product of its digits is 1200, while the sum is 24.

The square root of 5145621 is about 2268.3961294271. The cubic root of 5145621 is about 172.6417905822.

The spelling of 5145621 in words is "five million, one hundred forty-five thousand, six hundred twenty-one".