422154145 has 32 divisors (see below), whose sum is σ = 595641600. Its totient is φ = 281250816.

The previous prime is 422154133. The next prime is 422154211. The reversal of 422154145 is 541451224.

It is not a de Polignac number, because 422154145 - 2²³ = 413765537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182637 + ... + 184933.

It is an arithmetic number, because the mean of its divisors is an integer number (18613800).

Almost surely, 2^422154145 is an apocalyptic number.

It is an amenable number.

422154145 is a deficient number, since it is larger than the sum of its proper divisors (173487455).

422154145 is a wasteful number, since it uses less digits than its factorization.

422154145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457.

The product of its digits is 6400, while the sum is 28.

The square root of 422154145 is about 20546.3900722244. The cubic root of 422154145 is about 750.1653827880.

It can be divided in two parts, 42215 and 4145, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 422154145 in words is "four hundred twenty-two million, one hundred fifty-four thousand, one hundred forty-five".