155045004 has 12 divisors (see below), whose sum is σ = 361771704. Its totient is φ = 51681664.

The previous prime is 155045003. The next prime is 155045021. The reversal of 155045004 is 400540551.

155045004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (155045003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6460197 + ... + 6460220.

It is an arithmetic number, because the mean of its divisors is an integer number (30147642).

Almost surely, 2^155045004 is an apocalyptic number.

It is an amenable number.

155045004 is an abundant number, since it is smaller than the sum of its proper divisors (206726700).

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

155045004 is a wasteful number, since it uses less digits than its factorization.

155045004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12920424 (or 12920422 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 155045004 is about 12451.7068709475. The cubic root of 155045004 is about 537.2205191363.

Adding to 155045004 its reverse (400540551), we get a palindrome (555585555).

The spelling of 155045004 in words is "one hundred fifty-five million, forty-five thousand, four".