49105129 has 8 divisors (see below), whose sum is σ = 52707240. Its totient is φ = 45582336.

The previous prime is 49105109. The next prime is 49105141. The reversal of 49105129 is 92150194.

It can be written as a sum of positive squares in 4 ways, for example, as 17239104 + 31866025 = 4152^2 + 5645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49105129 - 2⁹ = 49104617 is a prime.

It is a super-2 number, since 2×49105129² = 4822627388213282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49105129.

It is not an unprimeable number, because it can be changed into a prime (49105109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18544 + ... + 21025.

It is an arithmetic number, because the mean of its divisors is an integer number (6588405).

Almost surely, 2^49105129 is an apocalyptic number.

It is an amenable number.

49105129 is a deficient number, since it is larger than the sum of its proper divisors (3602111).

49105129 is a wasteful number, since it uses less digits than its factorization.

49105129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39659.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 49105129 is about 7007.5051908650. The cubic root of 49105129 is about 366.1920841688.

The spelling of 49105129 in words is "forty-nine million, one hundred five thousand, one hundred twenty-nine".