155103240 has 64 divisors (see below), whose sum is σ = 492687360. Its totient is φ = 38927360.

The previous prime is 155103211. The next prime is 155103253. The reversal of 155103240 is 42301551.

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, 35976 + ... + 40055.

It is an arithmetic number, because the mean of its divisors is an integer number (7698240).

Almost surely, 2^155103240 is an apocalyptic number.

155103240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155103240 is an abundant number, since it is smaller than the sum of its proper divisors (337584120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155103240 is a wasteful number, since it uses less digits than its factorization.

155103240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76062 (or 76058 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 155103240 is about 12454.0451259822. The cubic root of 155103240 is about 537.2877719922.

Adding to 155103240 its reverse (42301551), we get a palindrome (197404791).

The spelling of 155103240 in words is "one hundred fifty-five million, one hundred three thousand, two hundred forty".