145025471 has 12 divisors (see below), whose sum is σ = 150737400. Its totient is φ = 139522320.

The previous prime is 145025467. The next prime is 145025473. The reversal of 145025471 is 174520541.

It is not a de Polignac number, because 145025471 - 2² = 145025467 is a prime.

It is a super-3 number, since 3×145025471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145025473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219740 + ... + 220398.

It is an arithmetic number, because the mean of its divisors is an integer number (12561450).

Almost surely, 2^145025471 is an apocalyptic number.

145025471 is a deficient number, since it is larger than the sum of its proper divisors (5711929).

145025471 is an equidigital number, since it uses as much as digits as its factorization.

145025471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 145025471 is about 12042.6521580589. The cubic root of 145025471 is about 525.3895473187.

The spelling of 145025471 in words is "one hundred forty-five million, twenty-five thousand, four hundred seventy-one".