155042234 has 8 divisors (see below), whose sum is σ = 232619988. Its totient is φ = 77502240.

The previous prime is 155042233. The next prime is 155042243. The reversal of 155042234 is 432240551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150136009 + 4906225 = 12253^2 + 2215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155042231) 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, 5654 + ... + 18494.

Almost surely, 2^155042234 is an apocalyptic number.

155042234 is a deficient number, since it is larger than the sum of its proper divisors (77577754).

155042234 is a wasteful number, since it uses less digits than its factorization.

155042234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18880.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 155042234 is about 12451.5956407201. The cubic root of 155042234 is about 537.2173198293.

Adding to 155042234 its reverse (432240551), we get a palindrome (587282785).

The spelling of 155042234 in words is "one hundred fifty-five million, forty-two thousand, two hundred thirty-four".