155414020 has 24 divisors (see below), whose sum is σ = 332529624. Its totient is φ = 60992256.

The previous prime is 155414009. The next prime is 155414027. The reversal of 155414020 is 20414551.

It can be written as a sum of positive squares in 4 ways, for example, as 29615364 + 125798656 = 5442^2 + 11216^2 .

It is a super-2 number, since 2×155414020² = 48307035225120800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155413982 and 155414000.

It is not an unprimeable number, because it can be changed into a prime (155414027) 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 7 ways as a sum of consecutive naturals, for example, 72249 + ... + 74368.

It is an arithmetic number, because the mean of its divisors is an integer number (13855401).

Almost surely, 2^155414020 is an apocalyptic number.

155414020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155414020 is an abundant number, since it is smaller than the sum of its proper divisors (177115604).

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

155414020 is a wasteful number, since it uses less digits than its factorization.

155414020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146679 (or 146677 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 155414020 is about 12466.5159527432. The cubic root of 155414020 is about 537.6463866652.

Adding to 155414020 its reverse (20414551), we get a palindrome (175828571).

The spelling of 155414020 in words is "one hundred fifty-five million, four hundred fourteen thousand, twenty".