49269181 has 4 divisors (see below), whose sum is σ = 53059132. Its totient is φ = 45479232.

The previous prime is 49269169. The next prime is 49269191. The reversal of 49269181 is 18196294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18196294 = 2 ⋅9098147.

It can be written as a sum of positive squares in 2 ways, for example, as 15280281 + 33988900 = 3909^2 + 5830^2 .

It is a cyclic number.

It is not a de Polignac number, because 49269181 - 2⁵ = 49269149 is a prime.

It is a super-2 number, since 2×49269181² = 4854904392821522, 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 (49269191) 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, 1894956 + ... + 1894981.

It is an arithmetic number, because the mean of its divisors is an integer number (13264783).

Almost surely, 2^49269181 is an apocalyptic number.

It is an amenable number.

49269181 is a deficient number, since it is larger than the sum of its proper divisors (3789951).

49269181 is a wasteful number, since it uses less digits than its factorization.

49269181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789950.

The product of its digits is 31104, while the sum is 40.

The square root of 49269181 is about 7019.2008804422. The cubic root of 49269181 is about 366.5994263294.

The spelling of 49269181 in words is "forty-nine million, two hundred sixty-nine thousand, one hundred eighty-one".