155133045 has 48 divisors (see below), whose sum is σ = 288243072. Its totient is φ = 76982400.

The previous prime is 155132993. The next prime is 155133047. The reversal of 155133045 is 540331551.

It is not a de Polignac number, because 155133045 - 2⁶ = 155132981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155133047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36270 + ... + 40320.

It is an arithmetic number, because the mean of its divisors is an integer number (6005064).

Almost surely, 2^155133045 is an apocalyptic number.

155133045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155133045 is a deficient number, since it is larger than the sum of its proper divisors (133110027).

155133045 is a wasteful number, since it uses less digits than its factorization.

155133045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4122 (or 4119 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 155133045 is about 12455.2416676675. The cubic root of 155133045 is about 537.3221852781.

Adding to 155133045 its reverse (540331551), we get a palindrome (695464596).

It can be divided in two parts, 1551 and 33045, that added together give a square (34596 = 186²).

The spelling of 155133045 in words is "one hundred fifty-five million, one hundred thirty-three thousand, forty-five".