155453652 has 18 divisors (see below), whose sum is σ = 392952378. Its totient is φ = 51817872.

The previous prime is 155453647. The next prime is 155453653. The reversal of 155453652 is 256354551.

155453652 is a `hidden beast` number, since 1 + 554 + 53 + 6 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 151437636 + 4016016 = 12306^2 + 2004^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4318157 = 155453652 / (1 + 5 + 5 + 4 + 5 + 3 + 6 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155453653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2159043 + ... + 2159114.

Almost surely, 2^155453652 is an apocalyptic number.

155453652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155453652 is an abundant number, since it is smaller than the sum of its proper divisors (237498726).

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

155453652 is a wasteful number, since it uses less digits than its factorization.

155453652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318167 (or 4318162 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 155453652 is about 12468.1053893525. The cubic root of 155453652 is about 537.6920843670.

The spelling of 155453652 in words is "one hundred fifty-five million, four hundred fifty-three thousand, six hundred fifty-two".