1549129056 has 48 divisors (see below), whose sum is σ = 4068792000. Its totient is φ = 516080768.

The previous prime is 1549129031. The next prime is 1549129067. The reversal of 1549129056 is 6509219451.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1549129056² = 4799601664286902272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1549128999 and 1549129017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221095 + ... + 227993.

It is an arithmetic number, because the mean of its divisors is an integer number (84766500).

Almost surely, 2^1549129056 is an apocalyptic number.

1549129056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1549129056 is an abundant number, since it is smaller than the sum of its proper divisors (2519662944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1549129056 is a wasteful number, since it uses less digits than its factorization.

1549129056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9251 (or 9243 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 1549129056 is about 39358.9768159692. The cubic root of 1549129056 is about 1157.0777256349.

The spelling of 1549129056 in words is "one billion, five hundred forty-nine million, one hundred twenty-nine thousand, fifty-six".