155132101 has 4 divisors (see below), whose sum is σ = 158432832. Its totient is φ = 151831372.

The previous prime is 155132077. The next prime is 155132129. The reversal of 155132101 is 101231551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101231551 = 59 ⋅1715789.

It is a cyclic number.

It is not a de Polignac number, because 155132101 - 2⁷ = 155131973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155132141) 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, 1650295 + ... + 1650388.

It is an arithmetic number, because the mean of its divisors is an integer number (39608208).

Almost surely, 2^155132101 is an apocalyptic number.

It is an amenable number.

155132101 is a deficient number, since it is larger than the sum of its proper divisors (3300731).

155132101 is an equidigital number, since it uses as much as digits as its factorization.

155132101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300730.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 155132101 is about 12455.2037719180. The cubic root of 155132101 is about 537.3210953896.

Adding to 155132101 its reverse (101231551), we get a palindrome (256363652).

The spelling of 155132101 in words is "one hundred fifty-five million, one hundred thirty-two thousand, one hundred one".