155000434 has 16 divisors (see below), whose sum is σ = 244074240. Its totient is φ = 73727280.

The previous prime is 155000431. The next prime is 155000453. The reversal of 155000434 is 434000551.

It is not an unprimeable number, because it can be changed into a prime (155000431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17529 + ... + 24844.

It is an arithmetic number, because the mean of its divisors is an integer number (15254640).

Almost surely, 2^155000434 is an apocalyptic number.

155000434 is a deficient number, since it is larger than the sum of its proper divisors (89073806).

155000434 is a wasteful number, since it uses less digits than its factorization.

155000434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42465.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 155000434 is about 12449.9170278360. The cubic root of 155000434 is about 537.1690368513.

Adding to 155000434 its reverse (434000551), we get a palindrome (589000985).

The spelling of 155000434 in words is "one hundred fifty-five million, four hundred thirty-four", and thus it is an aban number.