155538283 has 4 divisors (see below), whose sum is σ = 157078368. Its totient is φ = 153998200.

The previous prime is 155538233. The next prime is 155538301. The reversal of 155538283 is 382835551.

It is a happy number.

155538283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155538283 - 2⁹ = 155537771 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155538233) 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, 769891 + ... + 770092.

It is an arithmetic number, because the mean of its divisors is an integer number (39269592).

Almost surely, 2^155538283 is an apocalyptic number.

155538283 is a deficient number, since it is larger than the sum of its proper divisors (1540085).

155538283 is a wasteful number, since it uses less digits than its factorization.

155538283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540084.

The product of its digits is 144000, while the sum is 40.

The square root of 155538283 is about 12471.4988273262. The cubic root of 155538283 is about 537.7896421981.

The spelling of 155538283 in words is "one hundred fifty-five million, five hundred thirty-eight thousand, two hundred eighty-three".