2154006007 has 4 divisors (see below), whose sum is σ = 2173767640. Its totient is φ = 2134244376.

The previous prime is 2154005989. The next prime is 2154006011. The reversal of 2154006007 is 7006004512.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154006007 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 (2154006067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9880653 + ... + 9880870.

It is an arithmetic number, because the mean of its divisors is an integer number (543441910).

Almost surely, 2^2154006007 is an apocalyptic number.

2154006007 is a deficient number, since it is larger than the sum of its proper divisors (19761633).

2154006007 is a wasteful number, since it uses less digits than its factorization.

2154006007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19761632.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2154006007 is about 46411.2702584189. The cubic root of 2154006007 is about 1291.4639964239.

The spelling of 2154006007 in words is "two billion, one hundred fifty-four million, six thousand, seven".