145225974 has 16 divisors (see below), whose sum is σ = 291734208. Its totient is φ = 48194952.

The previous prime is 145225973. The next prime is 145226009. The reversal of 145225974 is 479522541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145225973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 51952 + ... + 54675.

It is an arithmetic number, because the mean of its divisors is an integer number (18233388).

Almost surely, 2^145225974 is an apocalyptic number.

145225974 is an abundant number, since it is smaller than the sum of its proper divisors (146508234).

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

145225974 is a wasteful number, since it uses less digits than its factorization.

145225974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106859.

The product of its digits is 100800, while the sum is 39.

The square root of 145225974 is about 12050.9739855333. The cubic root of 145225974 is about 525.6315592230.

The spelling of 145225974 in words is "one hundred forty-five million, two hundred twenty-five thousand, nine hundred seventy-four".