155063945 has 8 divisors (see below), whose sum is σ = 187784520. Its totient is φ = 122912640.

The previous prime is 155063903. The next prime is 155063969. The reversal of 155063945 is 549360551.

It can be written as a sum of positive squares in 4 ways, for example, as 2393209 + 152670736 = 1547^2 + 12356^2 .

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

It is not a de Polignac number, because 155063945 - 2¹⁴ = 155047561 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155063899 and 155063908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141716 + ... + 142805.

It is an arithmetic number, because the mean of its divisors is an integer number (23473065).

Almost surely, 2^155063945 is an apocalyptic number.

It is an amenable number.

155063945 is a deficient number, since it is larger than the sum of its proper divisors (32720575).

155063945 is a wasteful number, since it uses less digits than its factorization.

155063945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284635.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 155063945 is about 12452.4674261770. The cubic root of 155063945 is about 537.2423946762.

The spelling of 155063945 in words is "one hundred fifty-five million, sixty-three thousand, nine hundred forty-five".