155424004 has 12 divisors (see below), whose sum is σ = 272563200. Its totient is φ = 77548808.

The previous prime is 155423981. The next prime is 155424083. The reversal of 155424004 is 400424551.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 155424004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38644 + ... + 42475.

It is an arithmetic number, because the mean of its divisors is an integer number (22713600).

Almost surely, 2^155424004 is an apocalyptic number.

It is an amenable number.

155424004 is a deficient number, since it is larger than the sum of its proper divisors (117139196).

155424004 is a wasteful number, since it uses less digits than its factorization.

155424004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81602 (or 81600 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 155424004 is about 12466.9163789608. The cubic root of 155424004 is about 537.6578994545.

Adding to 155424004 its reverse (400424551), we get a palindrome (555848555).

The spelling of 155424004 in words is "one hundred fifty-five million, four hundred twenty-four thousand, four".