147980101 has 4 divisors (see below), whose sum is σ = 148005900. Its totient is φ = 147954304.

The previous prime is 147980099. The next prime is 147980141. The reversal of 147980101 is 101089741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92179201 + 55800900 = 9601^2 + 7470^2 .

It is a cyclic number.

It is not a de Polignac number, because 147980101 - 2¹ = 147980099 is a prime.

It is a super-2 number, since 2×147980101² = 43796220583940402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147980141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15 + ... + 17203.

It is an arithmetic number, because the mean of its divisors is an integer number (37001475).

Almost surely, 2^147980101 is an apocalyptic number.

It is an amenable number.

147980101 is a deficient number, since it is larger than the sum of its proper divisors (25799).

147980101 is an equidigital number, since it uses as much as digits as its factorization.

147980101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25798.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 147980101 is about 12164.7071892422. The cubic root of 147980101 is about 528.9335396297.

The spelling of 147980101 in words is "one hundred forty-seven million, nine hundred eighty thousand, one hundred one".