155450445 has 16 divisors (see below), whose sum is σ = 259535232. Its totient is φ = 79302080.

The previous prime is 155450443. The next prime is 155450483. The reversal of 155450445 is 544054551.

It is not a de Polignac number, because 155450445 - 2¹ = 155450443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155450441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224946 + ... + 225635.

It is an arithmetic number, because the mean of its divisors is an integer number (16220952).

Almost surely, 2^155450445 is an apocalyptic number.

155450445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155450445 is a deficient number, since it is larger than the sum of its proper divisors (104084787).

155450445 is a wasteful number, since it uses less digits than its factorization.

155450445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450612.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 155450445 is about 12467.9767805366. The cubic root of 155450445 is about 537.6883868225.

The spelling of 155450445 in words is "one hundred fifty-five million, four hundred fifty thousand, four hundred forty-five".