155144535 has 72 divisors (see below), whose sum is σ = 312930000. Its totient is φ = 65415168.

The previous prime is 155144467. The next prime is 155144537. The reversal of 155144535 is 535441551.

It is not a de Polignac number, because 155144535 - 2¹⁰ = 155143511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155144496 and 155144505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155144537) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 123591 + ... + 124839.

It is an arithmetic number, because the mean of its divisors is an integer number (4346250).

Almost surely, 2^155144535 is an apocalyptic number.

155144535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155144535 is an abundant number, since it is smaller than the sum of its proper divisors (157785465).

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

155144535 is a wasteful number, since it uses less digits than its factorization.

155144535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297 (or 1277 counting only the distinct ones).

The product of its digits is 30000, while the sum is 33.

The square root of 155144535 is about 12455.7029107152. The cubic root of 155144535 is about 537.3354506218.

The spelling of 155144535 in words is "one hundred fifty-five million, one hundred forty-four thousand, five hundred thirty-five".