2151566141 has 8 divisors (see below), whose sum is σ = 2200477440. Its totient is φ = 2102785488.

The previous prime is 2151566117. The next prime is 2151566159. The reversal of 2151566141 is 1416651512.

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 2151566141 - 2⁶ = 2151566077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2151566098 and 2151566107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151566101) 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, 1040 + ... + 65606.

It is an arithmetic number, because the mean of its divisors is an integer number (275059680).

Almost surely, 2^2151566141 is an apocalyptic number.

It is an amenable number.

2151566141 is a deficient number, since it is larger than the sum of its proper divisors (48911299).

2151566141 is an equidigital number, since it uses as much as digits as its factorization.

2151566141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65323.

The product of its digits is 7200, while the sum is 32.

The square root of 2151566141 is about 46384.9775358359. The cubic root of 2151566141 is about 1290.9761937657.

The spelling of 2151566141 in words is "two billion, one hundred fifty-one million, five hundred sixty-six thousand, one hundred forty-one".