155022412 has 6 divisors (see below), whose sum is σ = 271289228. Its totient is φ = 77511204.

The previous prime is 155022409. The next prime is 155022419. The reversal of 155022412 is 214220551.

155022412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155022419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19377798 + ... + 19377805.

Almost surely, 2^155022412 is an apocalyptic number.

It is an amenable number.

155022412 is a deficient number, since it is larger than the sum of its proper divisors (116266816).

155022412 is a wasteful number, since it uses less digits than its factorization.

155022412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38755607 (or 38755605 counting only the distinct ones).

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

The square root of 155022412 is about 12450.7996530343. The cubic root of 155022412 is about 537.1944246149.

Adding to 155022412 its reverse (214220551), we get a palindrome (369242963).

The spelling of 155022412 in words is "one hundred fifty-five million, twenty-two thousand, four hundred twelve".