147621051 has 24 divisors (see below), whose sum is σ = 225501120. Its totient is φ = 92799216.

The previous prime is 147621043. The next prime is 147621077. The reversal of 147621051 is 150126741.

It is a happy number.

It is not a de Polignac number, because 147621051 - 2³ = 147621043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147621011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36916 + ... + 40718.

It is an arithmetic number, because the mean of its divisors is an integer number (9395880).

Almost surely, 2^147621051 is an apocalyptic number.

147621051 is a deficient number, since it is larger than the sum of its proper divisors (77880069).

147621051 is a wasteful number, since it uses less digits than its factorization.

147621051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055 (or 4052 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 147621051 is about 12149.9403702240. The cubic root of 147621051 is about 528.5054023513.

Adding to 147621051 its reverse (150126741), we get a palindrome (297747792).

The spelling of 147621051 in words is "one hundred forty-seven million, six hundred twenty-one thousand, fifty-one".