145403211 has 8 divisors (see below), whose sum is σ = 194491600. Its totient is φ = 96625152.

The previous prime is 145403207. The next prime is 145403231. The reversal of 145403211 is 112304541.

145403211 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 145403211 - 2² = 145403207 is a prime.

It is a super-2 number, since 2×145403211² = 42284187538221042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145403231) 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, 76486 + ... + 78363.

It is an arithmetic number, because the mean of its divisors is an integer number (24311450).

Almost surely, 2^145403211 is an apocalyptic number.

145403211 is a deficient number, since it is larger than the sum of its proper divisors (49088389).

145403211 is a wasteful number, since it uses less digits than its factorization.

145403211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155165.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145403211 is about 12058.3253812459. The cubic root of 145403211 is about 525.8453030987.

Adding to 145403211 its reverse (112304541), we get a palindrome (257707752).

The spelling of 145403211 in words is "one hundred forty-five million, four hundred three thousand, two hundred eleven".