1538054494 has 8 divisors (see below), whose sum is σ = 2324693448. Its totient is φ = 763156680.

The previous prime is 1538054473. The next prime is 1538054521. The reversal of 1538054494 is 4944508351.

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

It is a super-2 number, since 2×1538054494² = 4731223253027192072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1538054494.

It is a congruent number.

It is an unprimeable number.

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, 2934957 + ... + 2935480.

It is an arithmetic number, because the mean of its divisors is an integer number (290586681).

Almost surely, 2^1538054494 is an apocalyptic number.

1538054494 is a deficient number, since it is larger than the sum of its proper divisors (786638954).

1538054494 is a wasteful number, since it uses less digits than its factorization.

1538054494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870570.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 1538054494 is about 39218.0378652477. The cubic root of 1538054494 is about 1154.3138529410.

The spelling of 1538054494 in words is "one billion, five hundred thirty-eight million, fifty-four thousand, four hundred ninety-four".