155494485 has 24 divisors (see below), whose sum is σ = 279508320. Its totient is φ = 82929744.

The previous prime is 155494483. The next prime is 155494501. The reversal of 155494485 is 584494551.

155494485 is a `hidden beast` number, since 1 + 554 + 94 + 4 + 8 + 5 = 666.

It is not a de Polignac number, because 155494485 - 2¹ = 155494483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155494485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155494483) 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 23 ways as a sum of consecutive naturals, for example, 62775 + ... + 65204.

It is an arithmetic number, because the mean of its divisors is an integer number (11646180).

Almost surely, 2^155494485 is an apocalyptic number.

155494485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155494485 is a deficient number, since it is larger than the sum of its proper divisors (124013835).

155494485 is an equidigital number, since it uses as much as digits as its factorization.

155494485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127999 (or 127987 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 155494485 is about 12469.7427800256. The cubic root of 155494485 is about 537.7391587597.

The spelling of 155494485 in words is "one hundred fifty-five million, four hundred ninety-four thousand, four hundred eighty-five".