149745725 has 6 divisors (see below), whose sum is σ = 185684730. Its totient is φ = 119796560.

The previous prime is 149745683. The next prime is 149745749. The reversal of 149745725 is 527547941.

It can be written as a sum of positive squares in 3 ways, for example, as 25623844 + 124121881 = 5062^2 + 11141^2 .

It is not a de Polignac number, because 149745725 - 2¹² = 149741629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2994890 + ... + 2994939.

It is an arithmetic number, because the mean of its divisors is an integer number (30947455).

Almost surely, 2^149745725 is an apocalyptic number.

It is an amenable number.

149745725 is a deficient number, since it is larger than the sum of its proper divisors (35939005).

149745725 is an equidigital number, since it uses as much as digits as its factorization.

149745725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989839 (or 5989834 counting only the distinct ones).

The product of its digits is 352800, while the sum is 44.

The square root of 149745725 is about 12237.0635775091. The cubic root of 149745725 is about 531.0288842203.

The spelling of 149745725 in words is "one hundred forty-nine million, seven hundred forty-five thousand, seven hundred twenty-five".