155340115 has 16 divisors (see below), whose sum is σ = 213804288. Its totient is φ = 106135776.

The previous prime is 155340113. The next prime is 155340167. The reversal of 155340115 is 511043551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155340115 - 2¹ = 155340113 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 155340115.

It is not an unprimeable number, because it can be changed into a prime (155340113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2064 + ... + 17746.

It is an arithmetic number, because the mean of its divisors is an integer number (13362768).

Almost surely, 2^155340115 is an apocalyptic number.

155340115 is a deficient number, since it is larger than the sum of its proper divisors (58464173).

155340115 is a wasteful number, since it uses less digits than its factorization.

155340115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15978.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 155340115 is about 12463.5514601577. The cubic root of 155340115 is about 537.5611497042.

Adding to 155340115 its reverse (511043551), we get a palindrome (666383666).

The spelling of 155340115 in words is "one hundred fifty-five million, three hundred forty thousand, one hundred fifteen".