155375890 has 16 divisors (see below), whose sum is σ = 285628032. Its totient is φ = 60827824.

The previous prime is 155375873. The next prime is 155375921. The reversal of 155375890 is 98573551.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 164824 + ... + 165763.

It is an arithmetic number, because the mean of its divisors is an integer number (17851752).

Almost surely, 2^155375890 is an apocalyptic number.

155375890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155375890 is a deficient number, since it is larger than the sum of its proper divisors (130252142).

155375890 is a wasteful number, since it uses less digits than its factorization.

155375890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330641.

The product of its (nonzero) digits is 189000, while the sum is 43.

The square root of 155375890 is about 12464.9865623674. The cubic root of 155375890 is about 537.6024135121.

The spelling of 155375890 in words is "one hundred fifty-five million, three hundred seventy-five thousand, eight hundred ninety".