155032101 has 12 divisors (see below), whose sum is σ = 255926112. Its totient is φ = 88589736.

The previous prime is 155032099. The next prime is 155032103. The reversal of 155032101 is 101230551.

155032101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155032099) and next prime (155032103).

It is not a de Polignac number, because 155032101 - 2¹ = 155032099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155032103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1230351 + ... + 1230476.

It is an arithmetic number, because the mean of its divisors is an integer number (21327176).

Almost surely, 2^155032101 is an apocalyptic number.

It is an amenable number.

155032101 is a deficient number, since it is larger than the sum of its proper divisors (100894011).

155032101 is a wasteful number, since it uses less digits than its factorization.

155032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460840 (or 2460837 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 155032101 is about 12451.1887384298. The cubic root of 155032101 is about 537.2056160469.

Adding to 155032101 its reverse (101230551), we get a palindrome (256262652).

The spelling of 155032101 in words is "one hundred fifty-five million, thirty-two thousand, one hundred one".