155400192 has 72 divisors (see below), whose sum is σ = 448877520. Its totient is φ = 51793920.

The previous prime is 155400181. The next prime is 155400211. The reversal of 155400192 is 291004551.

155400192 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14217 + ... + 22647.

It is an arithmetic number, because the mean of its divisors is an integer number (6234410).

Almost surely, 2^155400192 is an apocalyptic number.

155400192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155400192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224438760).

155400192 is an abundant number, since it is smaller than the sum of its proper divisors (293477328).

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

155400192 is an equidigital number, since it uses as much as digits as its factorization.

155400192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8459 (or 8436 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 155400192 is about 12465.9613347708. The cubic root of 155400192 is about 537.6304404532.

The spelling of 155400192 in words is "one hundred fifty-five million, four hundred thousand, one hundred ninety-two".