145542211 has 8 divisors (see below), whose sum is σ = 146776064. Its totient is φ = 144312840.

The previous prime is 145542197. The next prime is 145542227. The reversal of 145542211 is 112245541.

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

It is a cyclic number.

It is not a de Polignac number, because 145542211 - 2¹¹ = 145540163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145540211) 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, 98206 + ... + 99676.

It is an arithmetic number, because the mean of its divisors is an integer number (18347008).

Almost surely, 2^145542211 is an apocalyptic number.

145542211 is a deficient number, since it is larger than the sum of its proper divisors (1233853).

145542211 is a wasteful number, since it uses less digits than its factorization.

145542211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241.

The product of its digits is 1600, while the sum is 25.

The square root of 145542211 is about 12064.0876571749. The cubic root of 145542211 is about 526.0128125087.

Adding to 145542211 its reverse (112245541), we get a palindrome (257787752).

The spelling of 145542211 in words is "one hundred forty-five million, five hundred forty-two thousand, two hundred eleven".