145103133 has 32 divisors (see below), whose sum is σ = 233625600. Its totient is φ = 78255936.

The previous prime is 145103129. The next prime is 145103137. The reversal of 145103133 is 331301541.

It is an interprime number because it is at equal distance from previous prime (145103129) and next prime (145103137).

It is not a de Polignac number, because 145103133 - 2² = 145103129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145103137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142735 + ... + 143747.

It is an arithmetic number, because the mean of its divisors is an integer number (7300800).

Almost surely, 2^145103133 is an apocalyptic number.

It is an amenable number.

145103133 is a deficient number, since it is larger than the sum of its proper divisors (88522467).

145103133 is a wasteful number, since it uses less digits than its factorization.

145103133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 145103133 is about 12045.8761823290. The cubic root of 145103133 is about 525.4833136563.

Adding to 145103133 its reverse (331301541), we get a palindrome (476404674).

The spelling of 145103133 in words is "one hundred forty-five million, one hundred three thousand, one hundred thirty-three".