155275029 has 32 divisors (see below), whose sum is σ = 283127040. Its totient is φ = 81902016.

The previous prime is 155274997. The next prime is 155275033. The reversal of 155275029 is 920572551.

It is not a de Polignac number, because 155275029 - 2⁵ = 155274997 is a prime.

It is a super-2 number, since 2×155275029² = 48220669261901682, which contains 22 as substring.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 155274984 and 155275002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155275069) 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, 29142 + ... + 34055.

It is an arithmetic number, because the mean of its divisors is an integer number (8847720).

Almost surely, 2^155275029 is an apocalyptic number.

It is an amenable number.

155275029 is a deficient number, since it is larger than the sum of its proper divisors (127852011).

155275029 is a wasteful number, since it uses less digits than its factorization.

155275029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63226 (or 63220 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 155275029 is about 12460.9401330718. The cubic root of 155275029 is about 537.4860615819.

The spelling of 155275029 in words is "one hundred fifty-five million, two hundred seventy-five thousand, twenty-nine".