155150078 has 8 divisors (see below), whose sum is σ = 233193000. Its totient is φ = 77419080.

The previous prime is 155150077. The next prime is 155150089. The reversal of 155150078 is 870051551.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155150077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76733 + ... + 78728.

It is an arithmetic number, because the mean of its divisors is an integer number (29149125).

Almost surely, 2^155150078 is an apocalyptic number.

155150078 is a deficient number, since it is larger than the sum of its proper divisors (78042922).

155150078 is a wasteful number, since it uses less digits than its factorization.

155150078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155962.

The product of its (nonzero) digits is 7000, while the sum is 32.

The square root of 155150078 is about 12455.9254172462. The cubic root of 155150078 is about 537.3418498480.

The spelling of 155150078 in words is "one hundred fifty-five million, one hundred fifty thousand, seventy-eight".