49540147 has 4 divisors (see below), whose sum is σ = 49709520. Its totient is φ = 49370776.

The previous prime is 49540111. The next prime is 49540157. The reversal of 49540147 is 74104594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74104594 = 2 ⋅37052297.

It is a cyclic number.

It is not a de Polignac number, because 49540147 - 2¹⁹ = 49015859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49540157) 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, 84247 + ... + 84832.

It is an arithmetic number, because the mean of its divisors is an integer number (12427380).

Almost surely, 2^49540147 is an apocalyptic number.

49540147 is a deficient number, since it is larger than the sum of its proper divisors (169373).

49540147 is a wasteful number, since it uses less digits than its factorization.

49540147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169372.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 49540147 is about 7038.4761845161. The cubic root of 49540147 is about 367.2702610263.

The spelling of 49540147 in words is "forty-nine million, five hundred forty thousand, one hundred forty-seven".