149444009825 has 24 divisors (see below), whose sum is σ = 202184636736. Its totient is φ = 108671688000.

The previous prime is 149444009807. The next prime is 149444009843. The reversal of 149444009825 is 528900444941.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (149444009807) and next prime (149444009843).

It is not a de Polignac number, because 149444009825 - 2¹⁰ = 149444008801 is a prime.

It is a Duffinian number.

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, 2227724 + ... + 2293826.

It is an arithmetic number, because the mean of its divisors is an integer number (8424359864).

Almost surely, 2^149444009825 is an apocalyptic number.

It is an amenable number.

149444009825 is a deficient number, since it is larger than the sum of its proper divisors (52740626911).

149444009825 is a wasteful number, since it uses less digits than its factorization.

149444009825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74345 (or 74340 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 149444009825 in words is "one hundred forty-nine billion, four hundred forty-four million, nine thousand, eight hundred twenty-five".