155143254 has 32 divisors (see below), whose sum is σ = 355170816. Its totient is φ = 44256960.

The previous prime is 155143231. The next prime is 155143267. The reversal of 155143254 is 452341551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27994 + ... + 33074.

It is an arithmetic number, because the mean of its divisors is an integer number (11099088).

Almost surely, 2^155143254 is an apocalyptic number.

155143254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155143254 is an abundant number, since it is smaller than the sum of its proper divisors (200027562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155143254 is a wasteful number, since it uses less digits than its factorization.

155143254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820.

The product of its digits is 12000, while the sum is 30.

The square root of 155143254 is about 12455.6514883807. The cubic root of 155143254 is about 537.3339717243. Note that the first 3 decimals are identical.

The spelling of 155143254 in words is "one hundred fifty-five million, one hundred forty-three thousand, two hundred fifty-four".