155232142532 has 12 divisors (see below), whose sum is σ = 271666880940. Its totient is φ = 77613033696.

The previous prime is 155232142531. The next prime is 155232142537. The reversal of 155232142532 is 235241232551.

It can be written as a sum of positive squares in 2 ways, for example, as 34222780036 + 121009362496 = 184994^2 + 347864^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155232142492 and 155232142501.

It is not an unprimeable number, because it can be changed into a prime (155232142531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642407 + ... + 850382.

It is an arithmetic number, because the mean of its divisors is an integer number (22638906745).

Almost surely, 2^155232142532 is an apocalyptic number.

It is an amenable number.

155232142532 is a deficient number, since it is larger than the sum of its proper divisors (116434738408).

155232142532 is a wasteful number, since it uses less digits than its factorization.

155232142532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518790 (or 1518788 counting only the distinct ones).

The product of its digits is 72000, while the sum is 35.

The spelling of 155232142532 in words is "one hundred fifty-five billion, two hundred thirty-two million, one hundred forty-two thousand, five hundred thirty-two".