155223541 has 8 divisors (see below), whose sum is σ = 174797568. Its totient is φ = 136560000.

The previous prime is 155223533. The next prime is 155223587. The reversal of 155223541 is 145322551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155223541 - 2³ = 155223533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155223841) 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, 227260 + ... + 227941.

It is an arithmetic number, because the mean of its divisors is an integer number (21849696).

Almost surely, 2^155223541 is an apocalyptic number.

155223541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155223541 is a deficient number, since it is larger than the sum of its proper divisors (19574027).

155223541 is a wasteful number, since it uses less digits than its factorization.

155223541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455243.

The product of its digits is 6000, while the sum is 28.

The square root of 155223541 is about 12458.8739860390. The cubic root of 155223541 is about 537.4266462724.

The spelling of 155223541 in words is "one hundred fifty-five million, two hundred twenty-three thousand, five hundred forty-one".