155183040 has 140 divisors (see below), whose sum is σ = 552105576. Its totient is φ = 41375232.

The previous prime is 155183029. The next prime is 155183057. The reversal of 155183040 is 40381551.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 155182995 and 155183013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22927 + ... + 28913.

Almost surely, 2^155183040 is an apocalyptic number.

155183040 is a gapful number since it is divisible by the number (10) 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 155183040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276052788).

155183040 is an abundant number, since it is smaller than the sum of its proper divisors (396922536).

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

155183040 is an equidigital number, since it uses as much as digits as its factorization.

155183040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016 (or 5997 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 155183040 is about 12457.2484923437. The cubic root of 155183040 is about 537.3799003346.

The spelling of 155183040 in words is "one hundred fifty-five million, one hundred eighty-three thousand, forty".