2654640145 has 8 divisors (see below), whose sum is σ = 3188489256. Its totient is φ = 2121764736.

The previous prime is 2654640139. The next prime is 2654640167. The reversal of 2654640145 is 5410464562.

It can be written as a sum of positive squares in 4 ways, for example, as 1698841089 + 955799056 = 41217^2 + 30916^2 .

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 2654640145 - 2³ = 2654640137 is a prime.

It is a super-2 number, since 2×2654640145² = 14094228598891242050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237412 + ... + 248341.

It is an arithmetic number, because the mean of its divisors is an integer number (398561157).

Almost surely, 2^2654640145 is an apocalyptic number.

It is an amenable number.

2654640145 is a deficient number, since it is larger than the sum of its proper divisors (533849111).

2654640145 is a wasteful number, since it uses less digits than its factorization.

2654640145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486851.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 2654640145 is about 51523.2000656015. The cubic root of 2654640145 is about 1384.6347257954.

The spelling of 2654640145 in words is "two billion, six hundred fifty-four million, six hundred forty thousand, one hundred forty-five".