1534318990 has 8 divisors (see below), whose sum is σ = 2761774200. Its totient is φ = 613727592.

The previous prime is 1534318987. The next prime is 1534318999. The reversal of 1534318990 is 998134351.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534318999) 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 3 ways as a sum of consecutive naturals, for example, 76715940 + ... + 76715959.

It is an arithmetic number, because the mean of its divisors is an integer number (345221775).

Almost surely, 2^1534318990 is an apocalyptic number.

1534318990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1534318990 is a deficient number, since it is larger than the sum of its proper divisors (1227455210).

1534318990 is a wasteful number, since it uses less digits than its factorization.

1534318990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153431906.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1534318990 is about 39170.3840930875. The cubic root of 1534318990 is about 1153.3785935847.

The spelling of 1534318990 in words is "one billion, five hundred thirty-four million, three hundred eighteen thousand, nine hundred ninety".