155433201 has 16 divisors (see below), whose sum is σ = 258382848. Its totient is φ = 80744400.

The previous prime is 155433181. The next prime is 155433217. The reversal of 155433201 is 102334551.

155433201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155433201 - 2⁶ = 155433137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155433221) 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, 336205 + ... + 336666.

It is an arithmetic number, because the mean of its divisors is an integer number (16148928).

Almost surely, 2^155433201 is an apocalyptic number.

155433201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155433201 is a deficient number, since it is larger than the sum of its proper divisors (102949647).

155433201 is a wasteful number, since it uses less digits than its factorization.

155433201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672892.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 155433201 is about 12467.2852297523. The cubic root of 155433201 is about 537.6685042990.

Adding to 155433201 its reverse (102334551), we get a palindrome (257767752).

The spelling of 155433201 in words is "one hundred fifty-five million, four hundred thirty-three thousand, two hundred one".