155492194 has 16 divisors (see below), whose sum is σ = 274014720. Its totient is φ = 65241360.

The previous prime is 155492179. The next prime is 155492209. The reversal of 155492194 is 491294551.

It is an interprime number because it is at equal distance from previous prime (155492179) and next prime (155492209).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271554 + ... + 272125.

It is an arithmetic number, because the mean of its divisors is an integer number (17125920).

Almost surely, 2^155492194 is an apocalyptic number.

155492194 is a deficient number, since it is larger than the sum of its proper divisors (118522526).

155492194 is a wasteful number, since it uses less digits than its factorization.

155492194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543705.

The product of its digits is 64800, while the sum is 40.

The square root of 155492194 is about 12469.6509173272. The cubic root of 155492194 is about 537.7365177948.

The spelling of 155492194 in words is "one hundred fifty-five million, four hundred ninety-two thousand, one hundred ninety-four".