155535241 has 4 divisors (see below), whose sum is σ = 156066372. Its totient is φ = 155004112.

The previous prime is 155535239. The next prime is 155535251. The reversal of 155535241 is 142535551.

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 101203600 + 54331641 = 10060^2 + 7371^2 .

It is a cyclic number.

It is not a de Polignac number, because 155535241 - 2¹ = 155535239 is a prime.

It is a super-2 number, since 2×155535241² = 48382422385856162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155535221) 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, 265126 + ... + 265711.

It is an arithmetic number, because the mean of its divisors is an integer number (39016593).

Almost surely, 2^155535241 is an apocalyptic number.

It is an amenable number.

155535241 is a deficient number, since it is larger than the sum of its proper divisors (531131).

155535241 is an equidigital number, since it uses as much as digits as its factorization.

155535241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531130.

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

The square root of 155535241 is about 12471.3768686541. The cubic root of 155535241 is about 537.7861361657.

The spelling of 155535241 in words is "one hundred fifty-five million, five hundred thirty-five thousand, two hundred forty-one".