254405505145 has 8 divisors (see below), whose sum is σ = 333039934080. Its totient is φ = 185022185520.

The previous prime is 254405505139. The next prime is 254405505157. The reversal of 254405505145 is 541505504452.

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

It is not a de Polignac number, because 254405505145 - 2¹¹ = 254405503097 is a prime.

It is a super-2 number, since 2×254405505145² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 254405505098 and 254405505107.

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, 2312777265 + ... + 2312777374.

It is an arithmetic number, because the mean of its divisors is an integer number (41629991760).

Almost surely, 2^254405505145 is an apocalyptic number.

It is an amenable number.

254405505145 is a deficient number, since it is larger than the sum of its proper divisors (78634428935).

254405505145 is a wasteful number, since it uses less digits than its factorization.

254405505145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625554655.

The product of its (nonzero) digits is 400000, while the sum is 40.

The spelling of 254405505145 in words is "two hundred fifty-four billion, four hundred five million, five hundred five thousand, one hundred forty-five".