155356233 has 4 divisors (see below), whose sum is σ = 207141648. Its totient is φ = 103570820.

The previous prime is 155356207. The next prime is 155356241. The reversal of 155356233 is 332653551.

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, and also an emirpimes, since its reverse is a distinct semiprime: 332653551 = 3 ⋅110884517.

It is a cyclic number.

It is not a de Polignac number, because 155356233 - 2⁶ = 155356169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155356194 and 155356203.

It is not an unprimeable number, because it can be changed into a prime (155356273) 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, 25892703 + ... + 25892708.

It is an arithmetic number, because the mean of its divisors is an integer number (51785412).

Almost surely, 2^155356233 is an apocalyptic number.

It is an amenable number.

155356233 is a deficient number, since it is larger than the sum of its proper divisors (51785415).

155356233 is an equidigital number, since it uses as much as digits as its factorization.

155356233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51785414.

The product of its digits is 40500, while the sum is 33.

The square root of 155356233 is about 12464.1980488116. The cubic root of 155356233 is about 537.5797414053.

The spelling of 155356233 in words is "one hundred fifty-five million, three hundred fifty-six thousand, two hundred thirty-three".