145241775 has 96 divisors (see below), whose sum is σ = 310694400. Its totient is φ = 65145600.

The previous prime is 145241771. The next prime is 145241791. The reversal of 145241775 is 577142541.

145241775 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 145241775 - 2² = 145241771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145241771) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 278515 + ... + 279035.

It is an arithmetic number, because the mean of its divisors is an integer number (3236400).

Almost surely, 2^145241775 is an apocalyptic number.

145241775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145241775 is an abundant number, since it is smaller than the sum of its proper divisors (165452625).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145241775 is a wasteful number, since it uses less digits than its factorization.

145241775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 595 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 145241775 is about 12051.6295578648. The cubic root of 145241775 is about 525.6506219357.

The spelling of 145241775 in words is "one hundred forty-five million, two hundred forty-one thousand, seven hundred seventy-five".