155941693 has 8 divisors (see below), whose sum is σ = 161064288. Its totient is φ = 150887184.

The previous prime is 155941657. The next prime is 155941699. The reversal of 155941693 is 396149551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155941693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155941699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12346 + ... + 21547.

It is an arithmetic number, because the mean of its divisors is an integer number (20133036).

Almost surely, 2^155941693 is an apocalyptic number.

It is an amenable number.

155941693 is a deficient number, since it is larger than the sum of its proper divisors (5122595).

155941693 is a wasteful number, since it uses less digits than its factorization.

155941693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34043.

The product of its digits is 145800, while the sum is 43.

The square root of 155941693 is about 12487.6616305856. The cubic root of 155941693 is about 538.2541846935.

The spelling of 155941693 in words is "one hundred fifty-five million, nine hundred forty-one thousand, six hundred ninety-three".