5451845 has 16 divisors (see below), whose sum is σ = 7620480. Its totient is φ = 3666624.

The previous prime is 5451833. The next prime is 5451847. The reversal of 5451845 is 5481545.

It is a cyclic number.

It is not a de Polignac number, because 5451845 - 2¹⁰ = 5450821 is a prime.

It is a super-2 number, since 2×5451845² = 59445227808050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386 + ... + 3324.

It is an arithmetic number, because the mean of its divisors is an integer number (476280).

Almost surely, 2^5451845 is an apocalyptic number.

It is an amenable number.

5451845 is a deficient number, since it is larger than the sum of its proper divisors (2168635).

5451845 is a wasteful number, since it uses less digits than its factorization.

5451845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004.

The product of its digits is 16000, while the sum is 32.

The square root of 5451845 is about 2334.9186281325. The cubic root of 5451845 is about 176.0007425072. Note that the first 3 decimals are identical.

The spelling of 5451845 in words is "five million, four hundred fifty-one thousand, eight hundred forty-five".