155906133 has 8 divisors (see below), whose sum is σ = 220102848. Its totient is φ = 97823424.

The previous prime is 155906111. The next prime is 155906183. The reversal of 155906133 is 331609551.

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

It is not a de Polignac number, because 155906133 - 2¹³ = 155897941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155906094 and 155906103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155906183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528441 + ... + 1528542.

It is an arithmetic number, because the mean of its divisors is an integer number (27512856).

Almost surely, 2^155906133 is an apocalyptic number.

It is an amenable number.

155906133 is a deficient number, since it is larger than the sum of its proper divisors (64196715).

155906133 is a wasteful number, since it uses less digits than its factorization.

155906133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057003.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 155906133 is about 12486.2377440124. The cubic root of 155906133 is about 538.2132681742.

The spelling of 155906133 in words is "one hundred fifty-five million, nine hundred six thousand, one hundred thirty-three".