1549542130 has 32 divisors (see below), whose sum is σ = 2926384128. Its totient is φ = 589982400.

The previous prime is 1549542121. The next prime is 1549542139. The reversal of 1549542130 is 312459451.

It is an interprime number because it is at equal distance from previous prime (1549542121) and next prime (1549542139).

It is not an unprimeable number, because it can be changed into a prime (1549542139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22062 + ... + 59881.

It is an arithmetic number, because the mean of its divisors is an integer number (91449504).

Almost surely, 2^1549542130 is an apocalyptic number.

1549542130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1549542130 is a deficient number, since it is larger than the sum of its proper divisors (1376841998).

1549542130 is a wasteful number, since it uses less digits than its factorization.

1549542130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82042.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1549542130 is about 39364.2239857462. The cubic root of 1549542130 is about 1157.1805611059.

The spelling of 1549542130 in words is "one billion, five hundred forty-nine million, five hundred forty-two thousand, one hundred thirty".