2205765154 has 4 divisors (see below), whose sum is σ = 3308647734. Its totient is φ = 1102882576.

The previous prime is 2205765151. The next prime is 2205765167. The reversal of 2205765154 is 4515675022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4515675022 = 2 ⋅2257837511.

It can be written as a sum of positive squares in only one way, i.e., 1687155625 + 518609529 = 41075^2 + 22773^2 .

It is not an unprimeable number, because it can be changed into a prime (2205765151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551441287 + ... + 551441290.

Almost surely, 2^2205765154 is an apocalyptic number.

2205765154 is a deficient number, since it is larger than the sum of its proper divisors (1102882580).

2205765154 is a wasteful number, since it uses less digits than its factorization.

2205765154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102882579.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 2205765154 is about 46965.5741368079. The cubic root of 2205765154 is about 1301.7265331908.

The spelling of 2205765154 in words is "two billion, two hundred five million, seven hundred sixty-five thousand, one hundred fifty-four".