145246211 has 4 divisors (see below), whose sum is σ = 158450424. Its totient is φ = 132042000.

The previous prime is 145246207. The next prime is 145246229. The reversal of 145246211 is 112642541.

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

It is a cyclic number.

It is not a de Polignac number, because 145246211 - 2² = 145246207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145246271) 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, 6602090 + ... + 6602111.

It is an arithmetic number, because the mean of its divisors is an integer number (39612606).

Almost surely, 2^145246211 is an apocalyptic number.

145246211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145246211 is a deficient number, since it is larger than the sum of its proper divisors (13204213).

145246211 is a wasteful number, since it uses less digits than its factorization.

145246211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13204212.

The product of its digits is 1920, while the sum is 26.

The square root of 145246211 is about 12051.8135979611. The cubic root of 145246211 is about 525.6559733860.

Adding to 145246211 its reverse (112642541), we get a palindrome (257888752).

The spelling of 145246211 in words is "one hundred forty-five million, two hundred forty-six thousand, two hundred eleven".