155222541 has 8 divisors (see below), whose sum is σ = 229959360. Its totient is φ = 103481676.

The previous prime is 155222527. The next prime is 155222593. The reversal of 155222541 is 145222551.

It is not a de Polignac number, because 155222541 - 2⁶ = 155222477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5748983 = 155222541 / (1 + 5 + 5 + 2 + 2 + 2 + 5 + 4 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155222521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2874465 + ... + 2874518.

It is an arithmetic number, because the mean of its divisors is an integer number (28744920).

Almost surely, 2^155222541 is an apocalyptic number.

It is an amenable number.

155222541 is a deficient number, since it is larger than the sum of its proper divisors (74736819).

155222541 is an equidigital number, since it uses as much as digits as its factorization.

155222541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748992 (or 5748986 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 155222541 is about 12458.8338539367. The cubic root of 155222541 is about 537.4254921781.

The spelling of 155222541 in words is "one hundred fifty-five million, two hundred twenty-two thousand, five hundred forty-one".