2161037354 has 8 divisors (see below), whose sum is σ = 3704635488. Its totient is φ = 926158860.

The previous prime is 2161037353. The next prime is 2161037387. The reversal of 2161037354 is 4537301612.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2161037354.

It is not an unprimeable number, because it can be changed into a prime (2161037353) 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, 77179892 + ... + 77179919.

It is an arithmetic number, because the mean of its divisors is an integer number (463079436).

Almost surely, 2^2161037354 is an apocalyptic number.

2161037354 is a deficient number, since it is larger than the sum of its proper divisors (1543598134).

2161037354 is a wasteful number, since it uses less digits than its factorization.

2161037354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154359820.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 2161037354 is about 46486.9589670049. The cubic root of 2161037354 is about 1292.8677171452.

Adding to 2161037354 its reverse (4537301612), we get a palindrome (6698338966).

The spelling of 2161037354 in words is "two billion, one hundred sixty-one million, thirty-seven thousand, three hundred fifty-four".