164251550 has 24 divisors (see below), whose sum is σ = 305920152. Its totient is φ = 65612000.

The previous prime is 164251541. The next prime is 164251559. The reversal of 164251550 is 55152461.

It is a happy number.

164251550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164251541) and next prime (164251559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164251559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45305 + ... + 48795.

It is an arithmetic number, because the mean of its divisors is an integer number (12746673).

Almost surely, 2^164251550 is an apocalyptic number.

164251550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164251550 is a deficient number, since it is larger than the sum of its proper divisors (141668602).

164251550 is a wasteful number, since it uses less digits than its factorization.

164251550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444 (or 4439 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 164251550 is about 12816.0660890930. The cubic root of 164251550 is about 547.6500843033.

The spelling of 164251550 in words is "one hundred sixty-four million, two hundred fifty-one thousand, five hundred fifty".