145542975 has 12 divisors (see below), whose sum is σ = 240631176. Its totient is φ = 77622880.

The previous prime is 145542937. The next prime is 145543007. The reversal of 145542975 is 579245541.

It is not a de Polignac number, because 145542975 - 2⁷ = 145542847 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 970212 + ... + 970361.

It is an arithmetic number, because the mean of its divisors is an integer number (20052598).

Almost surely, 2^145542975 is an apocalyptic number.

145542975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145542975 is a deficient number, since it is larger than the sum of its proper divisors (95088201).

145542975 is a wasteful number, since it uses less digits than its factorization.

145542975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940586 (or 1940581 counting only the distinct ones).

The product of its digits is 252000, while the sum is 42.

The square root of 145542975 is about 12064.1193213595. The cubic root of 145542975 is about 526.0137329131.

The spelling of 145542975 in words is "one hundred forty-five million, five hundred forty-two thousand, nine hundred seventy-five".