147621201 has 32 divisors (see below), whose sum is σ = 242930688. Its totient is φ = 77647680.

The previous prime is 147621191. The next prime is 147621209. The reversal of 147621201 is 102126741.

147621201 = 196² + 197² + ... + 766².

It is not a de Polignac number, because 147621201 - 2⁵ = 147621169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (147621209) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 155410 + ... + 156356.

It is an arithmetic number, because the mean of its divisors is an integer number (7591584).

Almost surely, 2^147621201 is an apocalyptic number.

It is an amenable number.

147621201 is a deficient number, since it is larger than the sum of its proper divisors (95309487).

147621201 is a wasteful number, since it uses less digits than its factorization.

147621201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 147621201 is about 12149.9465430923. The cubic root of 147621201 is about 528.5055813587.

Adding to 147621201 its reverse (102126741), we get a palindrome (249747942).

The spelling of 147621201 in words is "one hundred forty-seven million, six hundred twenty-one thousand, two hundred one".