145274044 has 12 divisors (see below), whose sum is σ = 269184384. Its totient is φ = 68364224.

The previous prime is 145273991. The next prime is 145274047. The reversal of 145274044 is 440472541.

It is a super-2 number, since 2×145274044² = 42209095720227872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145273997 and 145274015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145274047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068124 + ... + 1068259.

It is an arithmetic number, because the mean of its divisors is an integer number (22432032).

Almost surely, 2^145274044 is an apocalyptic number.

It is an amenable number.

145274044 is a deficient number, since it is larger than the sum of its proper divisors (123910340).

145274044 is a wasteful number, since it uses less digits than its factorization.

145274044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136404 (or 2136402 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 145274044 is about 12052.9682651204. The cubic root of 145274044 is about 525.6895477518.

The spelling of 145274044 in words is "one hundred forty-five million, two hundred seventy-four thousand, forty-four".