155434024 has 8 divisors (see below), whose sum is σ = 291438810. Its totient is φ = 77717008.

The previous prime is 155434021. The next prime is 155434033. The reversal of 155434024 is 420434551.

It can be written as a sum of positive squares in only one way, i.e., 114704100 + 40729924 = 10710^2 + 6382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 155433983 and 155434001.

It is not an unprimeable number, because it can be changed into a prime (155434021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9714619 + ... + 9714634.

Almost surely, 2^155434024 is an apocalyptic number.

It is an amenable number.

155434024 is a deficient number, since it is larger than the sum of its proper divisors (136004786).

155434024 is a wasteful number, since it uses less digits than its factorization.

155434024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19429259 (or 19429255 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 155434024 is about 12467.3182360923. The cubic root of 155434024 is about 537.6694532605.

Adding to 155434024 its reverse (420434551), we get a palindrome (575868575).

The spelling of 155434024 in words is "one hundred fifty-five million, four hundred thirty-four thousand, twenty-four".