145107772 has 12 divisors (see below), whose sum is σ = 254099160. Its totient is φ = 72508016.

The previous prime is 145107761. The next prime is 145107791. The reversal of 145107772 is 277701541.

It is a congruent number.

It is an unprimeable number.

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, 3778 + ... + 17449.

It is an arithmetic number, because the mean of its divisors is an integer number (21174930).

Almost surely, 2^145107772 is an apocalyptic number.

It is an amenable number.

145107772 is a deficient number, since it is larger than the sum of its proper divisors (108991388).

145107772 is a wasteful number, since it uses less digits than its factorization.

145107772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22940 (or 22938 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 145107772 is about 12046.0687363139. The cubic root of 145107772 is about 525.4889135609.

The spelling of 145107772 in words is "one hundred forty-five million, one hundred seven thousand, seven hundred seventy-two".