49161481 has 4 divisors (see below), whose sum is σ = 49753872. Its totient is φ = 48569092.

The previous prime is 49161473. The next prime is 49161499. The reversal of 49161481 is 18416194.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49161481 - 2³ = 49161473 is a prime.

It is a super-2 number, since 2×49161481² = 4833702428226722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49171481) 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, 296071 + ... + 296236.

It is an arithmetic number, because the mean of its divisors is an integer number (12438468).

Almost surely, 2^49161481 is an apocalyptic number.

It is an amenable number.

49161481 is a deficient number, since it is larger than the sum of its proper divisors (592391).

49161481 is an equidigital number, since it uses as much as digits as its factorization.

49161481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592390.

The product of its digits is 6912, while the sum is 34.

The square root of 49161481 is about 7011.5248698126. The cubic root of 49161481 is about 366.3321086978.

The spelling of 49161481 in words is "forty-nine million, one hundred sixty-one thousand, four hundred eighty-one".