2154030961 has 8 divisors (see below), whose sum is σ = 2218099520. Its totient is φ = 2090270448.

The previous prime is 2154030953. The next prime is 2154030997. The reversal of 2154030961 is 1690304512.

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 2154030961 - 2³ = 2154030953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154030911) 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, 62781 + ... + 90826.

It is an arithmetic number, because the mean of its divisors is an integer number (277262440).

Almost surely, 2^2154030961 is an apocalyptic number.

It is an amenable number.

2154030961 is a deficient number, since it is larger than the sum of its proper divisors (64068559).

2154030961 is a wasteful number, since it uses less digits than its factorization.

2154030961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154023.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2154030961 is about 46411.5390932040. The cubic root of 2154030961 is about 1291.4689835763.

The spelling of 2154030961 in words is "two billion, one hundred fifty-four million, thirty thousand, nine hundred sixty-one".