145213125 has 20 divisors (see below), whose sum is σ = 241947552. Its totient is φ = 77446000.

The previous prime is 145213111. The next prime is 145213151. The reversal of 145213125 is 521312541.

It is a happy number.

145213125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145213125 - 2⁵ = 145213093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145213095 and 145213104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36849 + ... + 40598.

Almost surely, 2^145213125 is an apocalyptic number.

145213125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145213125 is a deficient number, since it is larger than the sum of its proper divisors (96734427).

145213125 is an frugal number, since it uses more digits than its factorization.

145213125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77470 (or 77455 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 145213125 is about 12050.4408633045. The cubic root of 145213125 is about 525.6160568558.

Adding to 145213125 its reverse (521312541), we get a palindrome (666525666).

The spelling of 145213125 in words is "one hundred forty-five million, two hundred thirteen thousand, one hundred twenty-five".