155694 has 32 divisors (see below), whose sum is σ = 389376. Its totient is φ = 40320.

The previous prime is 155693. The next prime is 155699. The reversal of 155694 is 496551.

Its product of digits (5400) is a multiple of the sum of its prime divisors (360).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294 + ... + 630.

It is an arithmetic number, because the mean of its divisors is an integer number (12168).

2¹⁵⁵⁶⁹⁴ is an apocalyptic number.

155694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194688).

155694 is an abundant number, since it is smaller than the sum of its proper divisors (233682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155694 is a wasteful number, since it uses less digits than its factorization.

155694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its digits is 5400, while the sum is 30.

The square root of 155694 is about 394.5807902065. The cubic root of 155694 is about 53.7969051531.

The spelling of 155694 in words is "one hundred fifty-five thousand, six hundred ninety-four".