155340101 has 24 divisors (see below), whose sum is σ = 194750976. Its totient is φ = 121224960.

The previous prime is 155340079. The next prime is 155340113. The reversal of 155340101 is 101043551.

It is not a de Polignac number, because 155340101 - 2¹⁰ = 155339077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155340301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61475 + ... + 63951.

It is an arithmetic number, because the mean of its divisors is an integer number (8114624).

Almost surely, 2^155340101 is an apocalyptic number.

It is an amenable number.

155340101 is a deficient number, since it is larger than the sum of its proper divisors (39410875).

155340101 is a wasteful number, since it uses less digits than its factorization.

155340101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2532 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 155340101 is about 12463.5508985201. The cubic root of 155340101 is about 537.5611335550.

Adding to 155340101 its reverse (101043551), we get a palindrome (256383652).

The spelling of 155340101 in words is "one hundred fifty-five million, three hundred forty thousand, one hundred one".