5405149 has 4 divisors (see below), whose sum is σ = 5493820. Its totient is φ = 5316480.

The previous prime is 5405137. The next prime is 5405173. The reversal of 5405149 is 9415045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2829124 + 2576025 = 1682^2 + 1605^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405149 - 2⁵ = 5405117 is a prime.

It is a Duffinian number.

5405149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5405119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44244 + ... + 44365.

It is an arithmetic number, because the mean of its divisors is an integer number (1373455).

Almost surely, 2^5405149 is an apocalyptic number.

It is an amenable number.

5405149 is a deficient number, since it is larger than the sum of its proper divisors (88671).

5405149 is an equidigital number, since it uses as much as digits as its factorization.

5405149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88670.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 5405149 is about 2324.8976321550. The cubic root of 5405149 is about 175.4968086800.

The spelling of 5405149 in words is "five million, four hundred five thousand, one hundred forty-nine".