155235541 has 4 divisors (see below), whose sum is σ = 155615500. Its totient is φ = 154855584.

The previous prime is 155235527. The next prime is 155235581. The reversal of 155235541 is 145532551.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82628100 + 72607441 = 9090^2 + 8521^2 .

It is a cyclic number.

It is not a de Polignac number, because 155235541 - 2⁷ = 155235413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155235581) 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, 189366 + ... + 190183.

It is an arithmetic number, because the mean of its divisors is an integer number (38903875).

Almost surely, 2^155235541 is an apocalyptic number.

It is an amenable number.

155235541 is a deficient number, since it is larger than the sum of its proper divisors (379959).

155235541 is an equidigital number, since it uses as much as digits as its factorization.

155235541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379958.

The product of its digits is 15000, while the sum is 31.

The square root of 155235541 is about 12459.3555611837. The cubic root of 155235541 is about 537.4404950171.

The spelling of 155235541 in words is "one hundred fifty-five million, two hundred thirty-five thousand, five hundred forty-one".