155041245 has 12 divisors (see below), whose sum is σ = 268738236. Its totient is φ = 82688640.

The previous prime is 155041223. The next prime is 155041247. The reversal of 155041245 is 542140551.

It can be written as a sum of positive squares in 2 ways, for example, as 122345721 + 32695524 = 11061^2 + 5718^2 .

It is not a de Polignac number, because 155041245 - 2¹⁴ = 155024861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155041247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1722636 + ... + 1722725.

It is an arithmetic number, because the mean of its divisors is an integer number (22394853).

Almost surely, 2^155041245 is an apocalyptic number.

155041245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155041245 is a deficient number, since it is larger than the sum of its proper divisors (113696991).

155041245 is a wasteful number, since it uses less digits than its factorization.

155041245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445372 (or 3445369 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 155041245 is about 12451.5559268711. Note that the first 3 decimals coincide. The cubic root of 155041245 is about 537.2161775404.

Adding to 155041245 its reverse (542140551), we get a palindrome (697181796).

The spelling of 155041245 in words is "one hundred fifty-five million, forty-one thousand, two hundred forty-five".