155145236 has 24 divisors (see below), whose sum is σ = 274190280. Its totient is φ = 76809600.

The previous prime is 155145229. The next prime is 155145251. The reversal of 155145236 is 632541551.

It can be written as a sum of positive squares in 4 ways, for example, as 2869636 + 152275600 = 1694^2 + 12340^2 .

It is a congruent number.

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, 304550 + ... + 305058.

It is an arithmetic number, because the mean of its divisors is an integer number (11424595).

Almost surely, 2^155145236 is an apocalyptic number.

It is an amenable number.

155145236 is a deficient number, since it is larger than the sum of its proper divisors (119045044).

155145236 is a wasteful number, since it uses less digits than its factorization.

155145236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1113 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 155145236 is about 12455.7310504041. The cubic root of 155145236 is about 537.3362599136.

Adding to 155145236 its reverse (632541551), we get a palindrome (787686787).

The spelling of 155145236 in words is "one hundred fifty-five million, one hundred forty-five thousand, two hundred thirty-six".