145339774 has 16 divisors (see below), whose sum is σ = 227703600. Its totient is φ = 69505344.

The previous prime is 145339771. The next prime is 145339807. The reversal of 145339774 is 477933541.

It is a super-2 number, since 2×145339774² = 42247299812742152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145339774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145339771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12279 + ... + 21010.

It is an arithmetic number, because the mean of its divisors is an integer number (14231475).

Almost surely, 2^145339774 is an apocalyptic number.

145339774 is a deficient number, since it is larger than the sum of its proper divisors (82363826).

145339774 is a wasteful number, since it uses less digits than its factorization.

145339774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33387.

The product of its digits is 317520, while the sum is 43.

The square root of 145339774 is about 12055.6946709843. The cubic root of 145339774 is about 525.7688194579.

The spelling of 145339774 in words is "one hundred forty-five million, three hundred thirty-nine thousand, seven hundred seventy-four".