4915381 has 4 divisors (see below), whose sum is σ = 4970700. Its totient is φ = 4860064.

The previous prime is 4915369. The next prime is 4915403. The reversal of 4915381 is 1835194.

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 3496900 + 1418481 = 1870^2 + 1191^2 .

It is a cyclic number.

It is not a de Polignac number, because 4915381 - 2⁹ = 4914869 is a prime.

It is a super-2 number, since 2×4915381² = 48321940750322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4915331) 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, 27526 + ... + 27703.

It is an arithmetic number, because the mean of its divisors is an integer number (1242675).

Almost surely, 2^4915381 is an apocalyptic number.

It is an amenable number.

4915381 is a deficient number, since it is larger than the sum of its proper divisors (55319).

4915381 is an equidigital number, since it uses as much as digits as its factorization.

4915381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55318.

The product of its digits is 4320, while the sum is 31.

The square root of 4915381 is about 2217.0658537806. The cubic root of 4915381 is about 170.0274580792.

The spelling of 4915381 in words is "four million, nine hundred fifteen thousand, three hundred eighty-one".