155454194 has 32 divisors (see below), whose sum is σ = 283357440. Its totient is φ = 62517312.

The previous prime is 155454193. The next prime is 155454259. The reversal of 155454194 is 491454551.

It is not an unprimeable number, because it can be changed into a prime (155454193) 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 15 ways as a sum of consecutive naturals, for example, 12512 + ... + 21620.

It is an arithmetic number, because the mean of its divisors is an integer number (8854920).

Almost surely, 2^155454194 is an apocalyptic number.

155454194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155454194 is a deficient number, since it is larger than the sum of its proper divisors (127903246).

155454194 is a wasteful number, since it uses less digits than its factorization.

155454194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9194.

The product of its digits is 72000, while the sum is 38.

The square root of 155454194 is about 12468.1271247930. The cubic root of 155454194 is about 537.6927092666.

The spelling of 155454194 in words is "one hundred fifty-five million, four hundred fifty-four thousand, one hundred ninety-four".