155144255 has 8 divisors (see below), whose sum is σ = 212769312. Its totient is φ = 106384608.

The previous prime is 155144251. The next prime is 155144263. The reversal of 155144255 is 552441551.

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 155144255 - 2² = 155144251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155144251) 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, 2216312 + ... + 2216381.

It is an arithmetic number, because the mean of its divisors is an integer number (26596164).

Almost surely, 2^155144255 is an apocalyptic number.

155144255 is a deficient number, since it is larger than the sum of its proper divisors (57625057).

155144255 is an equidigital number, since it uses as much as digits as its factorization.

155144255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432705.

The product of its digits is 20000, while the sum is 32.

The square root of 155144255 is about 12455.6916708788. The cubic root of 155144255 is about 537.3351273662.

The spelling of 155144255 in words is "one hundred fifty-five million, one hundred forty-four thousand, two hundred fifty-five".