155132011 has 4 divisors (see below), whose sum is σ = 155180272. Its totient is φ = 155083752.

The previous prime is 155131997. The next prime is 155132039. The reversal of 155132011 is 110231551.

155132011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110231551 = 4001 ⋅27551.

It is a cyclic number.

It is not a de Polignac number, because 155132011 - 2⁷ = 155131883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155132011.

It is not an unprimeable number, because it can be changed into a prime (155132611) 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, 18936 + ... + 25861.

It is an arithmetic number, because the mean of its divisors is an integer number (38795068).

Almost surely, 2^155132011 is an apocalyptic number.

155132011 is a deficient number, since it is larger than the sum of its proper divisors (48261).

155132011 is an equidigital number, since it uses as much as digits as its factorization.

155132011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48260.

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

The square root of 155132011 is about 12455.2001589697. The cubic root of 155132011 is about 537.3209914805.

Adding to 155132011 its reverse (110231551), we get a palindrome (265363562).

The spelling of 155132011 in words is "one hundred fifty-five million, one hundred thirty-two thousand, eleven".