2154601389 has 8 divisors (see below), whose sum is σ = 2875434592. Its totient is φ = 1435084560.

The previous prime is 2154601367. The next prime is 2154601433. The reversal of 2154601389 is 9831064512.

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

It is not a de Polignac number, because 2154601389 - 2¹² = 2154597293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154701389) 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, 325267 + ... + 331824.

It is an arithmetic number, because the mean of its divisors is an integer number (359429324).

Almost surely, 2^2154601389 is an apocalyptic number.

It is an amenable number.

2154601389 is a deficient number, since it is larger than the sum of its proper divisors (720833203).

2154601389 is a wasteful number, since it uses less digits than its factorization.

2154601389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658187.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 2154601389 is about 46417.6840115920. The cubic root of 2154601389 is about 1291.5829752911.

The spelling of 2154601389 in words is "two billion, one hundred fifty-four million, six hundred one thousand, three hundred eighty-nine".