145190744 has 32 divisors (see below), whose sum is σ = 293699520. Its totient is φ = 67032576.

The previous prime is 145190741. The next prime is 145190777. The reversal of 145190744 is 447091541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145190741) 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, 2864 + ... + 17279.

It is an arithmetic number, because the mean of its divisors is an integer number (9178110).

Almost surely, 2^145190744 is an apocalyptic number.

It is an amenable number.

145190744 is an abundant number, since it is smaller than the sum of its proper divisors (148508776).

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

145190744 is a wasteful number, since it uses less digits than its factorization.

145190744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20219 (or 20215 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 145190744 is about 12049.5121892963. The cubic root of 145190744 is about 525.5890519108.

The spelling of 145190744 in words is "one hundred forty-five million, one hundred ninety thousand, seven hundred forty-four".