145120101 has 8 divisors (see below), whose sum is σ = 221135424. Its totient is φ = 82925760.

The previous prime is 145120091. The next prime is 145120121. The reversal of 145120101 is 101021541.

It is a happy number.

145120101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145120101 - 2¹⁹ = 144595813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145120121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3455220 + ... + 3455261.

It is an arithmetic number, because the mean of its divisors is an integer number (27641928).

Almost surely, 2^145120101 is an apocalyptic number.

It is an amenable number.

145120101 is a deficient number, since it is larger than the sum of its proper divisors (76015323).

145120101 is an equidigital number, since it uses as much as digits as its factorization.

145120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910491.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 145120101 is about 12046.5804691622. The cubic root of 145120101 is about 525.5037957625.

Adding to 145120101 its reverse (101021541), we get a palindrome (246141642).

The spelling of 145120101 in words is "one hundred forty-five million, one hundred twenty thousand, one hundred one".