155161633 has 4 divisors (see below), whose sum is σ = 169267248. Its totient is φ = 141056020.

The previous prime is 155161631. The next prime is 155161637. The reversal of 155161633 is 336161551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 155161633 - 2¹ = 155161631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155161595 and 155161604.

It is not an unprimeable number, because it can be changed into a prime (155161631) 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 3 ways as a sum of consecutive naturals, for example, 7052791 + ... + 7052812.

It is an arithmetic number, because the mean of its divisors is an integer number (42316812).

Almost surely, 2^155161633 is an apocalyptic number.

It is an amenable number.

155161633 is a deficient number, since it is larger than the sum of its proper divisors (14105615).

155161633 is a wasteful number, since it uses less digits than its factorization.

155161633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14105614.

The product of its digits is 8100, while the sum is 31.

The square root of 155161633 is about 12456.3892440787. The cubic root of 155161633 is about 537.3551892568.

The spelling of 155161633 in words is "one hundred fifty-five million, one hundred sixty-one thousand, six hundred thirty-three".