155020234 has 8 divisors (see below), whose sum is σ = 233573760. Its totient is φ = 77162316.

The previous prime is 155020231. The next prime is 155020237. The reversal of 155020234 is 432020551.

It is an interprime number because it is at equal distance from previous prime (155020231) and next prime (155020237).

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

It is not an unprimeable number, because it can be changed into a prime (155020231) 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, 173344 + ... + 174235.

It is an arithmetic number, because the mean of its divisors is an integer number (29196720).

Almost surely, 2^155020234 is an apocalyptic number.

155020234 is a deficient number, since it is larger than the sum of its proper divisors (78553526).

155020234 is a wasteful number, since it uses less digits than its factorization.

155020234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347804.

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

The square root of 155020234 is about 12450.7121884654. The cubic root of 155020234 is about 537.1919088175.

Adding to 155020234 its reverse (432020551), we get a palindrome (587040785).

The spelling of 155020234 in words is "one hundred fifty-five million, twenty thousand, two hundred thirty-four".