2154214131 has 8 divisors (see below), whose sum is σ = 2873749200. Its totient is φ = 1435410912.

The previous prime is 2154214123. The next prime is 2154214133. The reversal of 2154214131 is 1314124512.

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

It is not a de Polignac number, because 2154214131 - 2³ = 2154214123 is a prime.

It is a super-2 number, since 2×2154214131² = 9281277044400170322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2154214133) 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, 176056 + ... + 187893.

It is an arithmetic number, because the mean of its divisors is an integer number (359218650).

Almost surely, 2^2154214131 is an apocalyptic number.

2154214131 is a deficient number, since it is larger than the sum of its proper divisors (719535069).

2154214131 is a wasteful number, since it uses less digits than its factorization.

2154214131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365925.

The product of its digits is 960, while the sum is 24.

The square root of 2154214131 is about 46413.5123751694. The cubic root of 2154214131 is about 1291.5055896222.

Adding to 2154214131 its reverse (1314124512), we get a palindrome (3468338643).

The spelling of 2154214131 in words is "two billion, one hundred fifty-four million, two hundred fourteen thousand, one hundred thirty-one".