1554054839 has 4 divisors (see below), whose sum is σ = 1568578824. Its totient is φ = 1539530856.

The previous prime is 1554054793. The next prime is 1554054841. The reversal of 1554054839 is 9384504551.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1554054839 - 2¹⁶ = 1553989303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1554054839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554054539) 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, 7261832 + ... + 7262045.

It is an arithmetic number, because the mean of its divisors is an integer number (392144706).

Almost surely, 2^1554054839 is an apocalyptic number.

1554054839 is a deficient number, since it is larger than the sum of its proper divisors (14523985).

1554054839 is a wasteful number, since it uses less digits than its factorization.

1554054839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14523984.

The product of its (nonzero) digits is 432000, while the sum is 44.

The square root of 1554054839 is about 39421.5022417969. The cubic root of 1554054839 is about 1158.3028190686.

The spelling of 1554054839 in words is "one billion, five hundred fifty-four million, fifty-four thousand, eight hundred thirty-nine".