155280411 has 36 divisors (see below), whose sum is σ = 264982536. Its totient is φ = 86860800.

The previous prime is 155280409. The next prime is 155280449. The reversal of 155280411 is 114082551.

It is not a de Polignac number, because 155280411 - 2¹ = 155280409 is a prime.

It is a super-2 number, since 2×155280411² = 48224012080657842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155280401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12091 + ... + 21371.

It is an arithmetic number, because the mean of its divisors is an integer number (7360626).

Almost surely, 2^155280411 is an apocalyptic number.

155280411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155280411 is a deficient number, since it is larger than the sum of its proper divisors (109702125).

155280411 is a wasteful number, since it uses less digits than its factorization.

155280411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324 (or 9308 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 155280411 is about 12461.1560860138. The cubic root of 155280411 is about 537.4922714591.

The spelling of 155280411 in words is "one hundred fifty-five million, two hundred eighty thousand, four hundred eleven".