2051716154 has 8 divisors (see below), whose sum is σ = 3078379668. Its totient is φ = 1025589600.

The previous prime is 2051716153. The next prime is 2051716169. The reversal of 2051716154 is 4516171502.

It can be written as a sum of positive squares in 2 ways, for example, as 2020053025 + 31663129 = 44945^2 + 5627^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2051716154.

It is not an unprimeable number, because it can be changed into a prime (2051716153) 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, 124547 + ... + 140054.

Almost surely, 2^2051716154 is an apocalyptic number.

2051716154 is a deficient number, since it is larger than the sum of its proper divisors (1026663514).

2051716154 is a wasteful number, since it uses less digits than its factorization.

2051716154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268480.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 2051716154 is about 45295.8734765100. The cubic root of 2051716154 is about 1270.6884799050.

Adding to 2051716154 its reverse (4516171502), we get a palindrome (6567887656).

The spelling of 2051716154 in words is "two billion, fifty-one million, seven hundred sixteen thousand, one hundred fifty-four".