155204245 has 16 divisors (see below), whose sum is σ = 213510528. Its totient is φ = 106096320.

The previous prime is 155204221. The next prime is 155204251. The reversal of 155204245 is 542402551.

It is not a de Polignac number, because 155204245 - 2⁹ = 155203733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4887 + ... + 18283.

It is an arithmetic number, because the mean of its divisors is an integer number (13344408).

Almost surely, 2^155204245 is an apocalyptic number.

It is an amenable number.

155204245 is a deficient number, since it is larger than the sum of its proper divisors (58306283).

155204245 is a wasteful number, since it uses less digits than its factorization.

155204245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13740.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 155204245 is about 12458.0995741726. The cubic root of 155204245 is about 537.4043759942.

Adding to 155204245 its reverse (542402551), we get a palindrome (697606796).

The spelling of 155204245 in words is "one hundred fifty-five million, two hundred four thousand, two hundred forty-five".