155429120 has 288 divisors, whose sum is σ = 494484480. Its totient is φ = 45342720.

The previous prime is 155429093. The next prime is 155429123. The reversal of 155429120 is 21924551.

It is a super-2 number, since 2×155429120² = 48316422687948800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155429123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1872599 + ... + 1872681.

It is an arithmetic number, because the mean of its divisors is an integer number (1716960).

Almost surely, 2^155429120 is an apocalyptic number.

155429120 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 155429120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247242240).

155429120 is an abundant number, since it is smaller than the sum of its proper divisors (339055360).

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

155429120 is a wasteful number, since it uses less digits than its factorization.

155429120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 155429120 is about 12467.1215603282. The cubic root of 155429120 is about 537.6637986455.

The spelling of 155429120 in words is "one hundred fifty-five million, four hundred twenty-nine thousand, one hundred twenty".