1538480145 has 8 divisors (see below), whose sum is σ = 2461568256. Its totient is φ = 820522736.

The previous prime is 1538480137. The next prime is 1538480147. The reversal of 1538480145 is 5410848351.

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 1538480145 - 2³ = 1538480137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1538480147) 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, 51282657 + ... + 51282686.

It is an arithmetic number, because the mean of its divisors is an integer number (307696032).

Almost surely, 2^1538480145 is an apocalyptic number.

1538480145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1538480145 is a deficient number, since it is larger than the sum of its proper divisors (923088111).

1538480145 is a wasteful number, since it uses less digits than its factorization.

1538480145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102565351.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 1538480145 is about 39223.4642146764. The cubic root of 1538480145 is about 1154.4203271761.

The spelling of 1538480145 in words is "one billion, five hundred thirty-eight million, four hundred eighty thousand, one hundred forty-five".