155205083 has 4 divisors (see below), whose sum is σ = 169314648. Its totient is φ = 141095520.

The previous prime is 155205073. The next prime is 155205107. The reversal of 155205083 is 380502551.

155205083 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 155205083 - 2⁴ = 155205067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155205023) 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, 7054766 + ... + 7054787.

It is an arithmetic number, because the mean of its divisors is an integer number (42328662).

Almost surely, 2^155205083 is an apocalyptic number.

155205083 is a deficient number, since it is larger than the sum of its proper divisors (14109565).

155205083 is a wasteful number, since it uses less digits than its factorization.

155205083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14109564.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 155205083 is about 12458.1332068653. The cubic root of 155205083 is about 537.4053432016.

The spelling of 155205083 in words is "one hundred fifty-five million, two hundred five thousand, eighty-three".