155411340 has 72 divisors (see below), whose sum is σ = 506206512. Its totient is φ = 35521920.

The previous prime is 155411329. The next prime is 155411351. The reversal of 155411340 is 43114551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (155411329) and next prime (155411351).

It is a self number, because there is not a number n which added to its sum of digits gives 155411340.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23491 + ... + 29370.

It is an arithmetic number, because the mean of its divisors is an integer number (7030646).

Almost surely, 2^155411340 is an apocalyptic number.

155411340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155411340 is an abundant number, since it is smaller than the sum of its proper divisors (350795172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155411340 is a wasteful number, since it uses less digits than its factorization.

155411340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52887 (or 52878 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 155411340 is about 12466.4084643493. The cubic root of 155411340 is about 537.6432962092.

Adding to 155411340 its reverse (43114551), we get a palindrome (198525891).

The spelling of 155411340 in words is "one hundred fifty-five million, four hundred eleven thousand, three hundred forty".