155206029 has 16 divisors (see below), whose sum is σ = 226759680. Its totient is φ = 93645360.

The previous prime is 155206019. The next prime is 155206063. The reversal of 155206029 is 920602551.

It is a happy number.

It is not a de Polignac number, because 155206029 - 2⁵ = 155205997 is a prime.

It is a super-2 number, since 2×155206029² = 48177822875897682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155205987 and 155206005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155206019) 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, 2869 + ... + 17850.

It is an arithmetic number, because the mean of its divisors is an integer number (14172480).

Almost surely, 2^155206029 is an apocalyptic number.

It is an amenable number.

155206029 is a deficient number, since it is larger than the sum of its proper divisors (71553651).

155206029 is a wasteful number, since it uses less digits than its factorization.

155206029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20960.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 155206029 is about 12458.1711739725. The cubic root of 155206029 is about 537.4064350568.

The spelling of 155206029 in words is "one hundred fifty-five million, two hundred six thousand, twenty-nine".