155630199 has 16 divisors (see below), whose sum is σ = 214917120. Its totient is φ = 100070880.

The previous prime is 155630191. The next prime is 155630203. The reversal of 155630199 is 991036551.

It is not a de Polignac number, because 155630199 - 2³ = 155630191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155630191) 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, 26842 + ... + 32120.

It is an arithmetic number, because the mean of its divisors is an integer number (13432320).

Almost surely, 2^155630199 is an apocalyptic number.

155630199 is a deficient number, since it is larger than the sum of its proper divisors (59286921).

155630199 is a wasteful number, since it uses less digits than its factorization.

155630199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630.

The product of its (nonzero) digits is 36450, while the sum is 39.

The square root of 155630199 is about 12475.1833253063. The cubic root of 155630199 is about 537.8955576845.

The spelling of 155630199 in words is "one hundred fifty-five million, six hundred thirty thousand, one hundred ninety-nine".