155402132 has 24 divisors (see below), whose sum is σ = 281901312. Its totient is φ = 74880000.

The previous prime is 155402131. The next prime is 155402141. The reversal of 155402132 is 231204551.

155402132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155402098 and 155402107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155402131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28628 + ... + 33620.

It is an arithmetic number, because the mean of its divisors is an integer number (11745888).

Almost surely, 2^155402132 is an apocalyptic number.

It is an amenable number.

155402132 is a deficient number, since it is larger than the sum of its proper divisors (126499180).

155402132 is a wasteful number, since it uses less digits than its factorization.

155402132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279 (or 5277 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 155402132 is about 12466.0391464170. The cubic root of 155402132 is about 537.6326776849.

Adding to 155402132 its reverse (231204551), we get a palindrome (386606683).

The spelling of 155402132 in words is "one hundred fifty-five million, four hundred two thousand, one hundred thirty-two".