155132001 has 24 divisors (see below), whose sum is σ = 228369024. Its totient is φ = 101455200.

The previous prime is 155131997. The next prime is 155132039. The reversal of 155132001 is 100231551.

It is not a de Polignac number, because 155132001 - 2² = 155131997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155122001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220951 + ... + 221651.

It is an arithmetic number, because the mean of its divisors is an integer number (9515376).

Almost surely, 2^155132001 is an apocalyptic number.

It is an amenable number.

155132001 is a deficient number, since it is larger than the sum of its proper divisors (73237023).

155132001 is a wasteful number, since it uses less digits than its factorization.

155132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1138 counting only the distinct ones).

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

The square root of 155132001 is about 12455.1997575310. The cubic root of 155132001 is about 537.3209799350.

Adding to 155132001 its reverse (100231551), we get a palindrome (255363552).

The spelling of 155132001 in words is "one hundred fifty-five million, one hundred thirty-two thousand, one".