49135287 has 16 divisors (see below), whose sum is σ = 69780960. Its totient is φ = 30646272.

The previous prime is 49135277. The next prime is 49135381. The reversal of 49135287 is 78253194.

It is a de Polignac number, because none of the positive numbers 2^k-49135287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49135237) 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 15 ways as a sum of consecutive naturals, for example, 6039 + ... + 11607.

It is an arithmetic number, because the mean of its divisors is an integer number (4361310).

Almost surely, 2^49135287 is an apocalyptic number.

49135287 is a deficient number, since it is larger than the sum of its proper divisors (20645673).

49135287 is a wasteful number, since it uses less digits than its factorization.

49135287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762.

The product of its digits is 60480, while the sum is 39.

The square root of 49135287 is about 7009.6566963012. The cubic root of 49135287 is about 366.2670346614.

It can be divided in two parts, 491 and 35287, that added together give a triangular number (35778 = T₂₆₇).

The spelling of 49135287 in words is "forty-nine million, one hundred thirty-five thousand, two hundred eighty-seven".