149857625 has 8 divisors (see below), whose sum is σ = 187022472. Its totient is φ = 119886000.

The previous prime is 149857621. The next prime is 149857633. The reversal of 149857625 is 526758941.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2866249 + 146991376 = 1693^2 + 12124^2 .

It is not a de Polignac number, because 149857625 - 2² = 149857621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149857625.

It is not an unprimeable number, because it can be changed into a prime (149857621) 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, 599306 + ... + 599555.

It is an arithmetic number, because the mean of its divisors is an integer number (23377809).

Almost surely, 2^149857625 is an apocalyptic number.

It is an amenable number.

149857625 is a deficient number, since it is larger than the sum of its proper divisors (37164847).

149857625 is an equidigital number, since it uses as much as digits as its factorization.

149857625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198876 (or 1198866 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 149857625 is about 12241.6348989831. The cubic root of 149857625 is about 531.1611246942.

The spelling of 149857625 in words is "one hundred forty-nine million, eight hundred fifty-seven thousand, six hundred twenty-five".