1554045889 has 8 divisors (see below), whose sum is σ = 1696979520. Its totient is φ = 1411388400.

The previous prime is 1554045877. The next prime is 1554045949. The reversal of 1554045889 is 9885404551.

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 1554045889 - 2¹³ = 1554037697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1554045839) 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, 57174 + ... + 79855.

It is an arithmetic number, because the mean of its divisors is an integer number (212122440).

Almost surely, 2^1554045889 is an apocalyptic number.

It is an amenable number.

1554045889 is a deficient number, since it is larger than the sum of its proper divisors (142933631).

1554045889 is a wasteful number, since it uses less digits than its factorization.

1554045889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138071.

The product of its (nonzero) digits is 1152000, while the sum is 49.

The square root of 1554045889 is about 39421.3887249041. The cubic root of 1554045889 is about 1158.3005954598.

The spelling of 1554045889 in words is "one billion, five hundred fifty-four million, forty-five thousand, eight hundred eighty-nine".