155452129 has 16 divisors (see below), whose sum is σ = 187361280. Its totient is φ = 125994960.

The previous prime is 155452051. The next prime is 155452139. The reversal of 155452129 is 921254551.

It is not a de Polignac number, because 155452129 - 2⁷ = 155452001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155452094 and 155452103.

It is not an unprimeable number, because it can be changed into a prime (155452139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120522 + ... + 121804.

It is an arithmetic number, because the mean of its divisors is an integer number (11710080).

Almost surely, 2^155452129 is an apocalyptic number.

155452129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

155452129 is a deficient number, since it is larger than the sum of its proper divisors (31909151).

155452129 is a wasteful number, since it uses less digits than its factorization.

155452129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220.

The product of its digits is 18000, while the sum is 34.

The square root of 155452129 is about 12468.0443133637. The cubic root of 155452129 is about 537.6903284144.

The spelling of 155452129 in words is "one hundred fifty-five million, four hundred fifty-two thousand, one hundred twenty-nine".