155400022 has 8 divisors (see below), whose sum is σ = 238521096. Its totient is φ = 75892992.

The previous prime is 155400017. The next prime is 155400061. The reversal of 155400022 is 220004551.

155400022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903403 + ... + 903574.

It is an arithmetic number, because the mean of its divisors is an integer number (29815137).

Almost surely, 2^155400022 is an apocalyptic number.

155400022 is a deficient number, since it is larger than the sum of its proper divisors (83121074).

155400022 is a wasteful number, since it uses less digits than its factorization.

155400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807022.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 155400022 is about 12465.9545162013. The cubic root of 155400022 is about 537.6302444062.

Adding to 155400022 its reverse (220004551), we get a palindrome (375404573).

The spelling of 155400022 in words is "one hundred fifty-five million, four hundred thousand, twenty-two".