145744866 has 16 divisors (see below), whose sum is σ = 323877600. Its totient is φ = 48581604.

The previous prime is 145744861. The next prime is 145744867. The reversal of 145744866 is 668447541.

145744866 is a `hidden beast` number, since 14 + 574 + 4 + 8 + 66 = 666.

It is not an unprimeable number, because it can be changed into a prime (145744861) 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, 1349436 + ... + 1349543.

It is an arithmetic number, because the mean of its divisors is an integer number (20242350).

Almost surely, 2^145744866 is an apocalyptic number.

145744866 is an abundant number, since it is smaller than the sum of its proper divisors (178132734).

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

145744866 is a wasteful number, since it uses less digits than its factorization.

145744866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698990 (or 2698984 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 145744866 is about 12072.4838372226. The cubic root of 145744866 is about 526.2568418005.

The spelling of 145744866 in words is "one hundred forty-five million, seven hundred forty-four thousand, eight hundred sixty-six".