49149279 has 6 divisors (see below), whose sum is σ = 70993416. Its totient is φ = 32766180.

The previous prime is 49149277. The next prime is 49149307. The reversal of 49149279 is 97294194.

It is a happy number.

49149279 is a `hidden beast` number, since 4 + 91 + 492 + 79 = 666.

It is not a de Polignac number, because 49149279 - 2¹ = 49149277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49149277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2730507 + ... + 2730524.

It is an arithmetic number, because the mean of its divisors is an integer number (11832236).

Almost surely, 2^49149279 is an apocalyptic number.

49149279 is a deficient number, since it is larger than the sum of its proper divisors (21844137).

49149279 is a wasteful number, since it uses less digits than its factorization.

49149279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5461037 (or 5461034 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 49149279 is about 7010.6546769899. The cubic root of 49149279 is about 366.3017980143.

It can be divided in two parts, 491 and 49279, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 49149279 in words is "forty-nine million, one hundred forty-nine thousand, two hundred seventy-nine".