155403032 has 16 divisors (see below), whose sum is σ = 298157640. Its totient is φ = 75894336.

The previous prime is 155403029. The next prime is 155403037. The reversal of 155403032 is 230304551.

It is a junction number, because it is equal to n+sod(n) for n = 155402989 and 155403007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155403037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225533 + ... + 226220.

Almost surely, 2^155403032 is an apocalyptic number.

It is an amenable number.

155403032 is a deficient number, since it is larger than the sum of its proper divisors (142754608).

155403032 is a wasteful number, since it uses less digits than its factorization.

155403032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451802 (or 451798 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 155403032 is about 12466.0752444384. The cubic root of 155403032 is about 537.6337155696.

Adding to 155403032 its reverse (230304551), we get a palindrome (385707583).

The spelling of 155403032 in words is "one hundred fifty-five million, four hundred three thousand, thirty-two".