149966025 has 24 divisors (see below), whose sum is σ = 270485664. Its totient is φ = 72710400.

The previous prime is 149965951. The next prime is 149966039. The reversal of 149966025 is 520669941.

It is a happy number.

It is not a de Polignac number, because 149966025 - 2⁹ = 149965513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90064 + ... + 91713.

It is an arithmetic number, because the mean of its divisors is an integer number (11270236).

Almost surely, 2^149966025 is an apocalyptic number.

149966025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149966025 is a deficient number, since it is larger than the sum of its proper divisors (120519639).

149966025 is a wasteful number, since it uses less digits than its factorization.

149966025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181801 (or 181796 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 149966025 is about 12246.0616117999. The cubic root of 149966025 is about 531.2891662012.

The spelling of 149966025 in words is "one hundred forty-nine million, nine hundred sixty-six thousand, twenty-five".