149448253359409 has 9 divisors (see below), whose sum is σ = 149728666763307. Its totient is φ = 149168364205224.

The previous prime is 149448253359401. The next prime is 149448253359413. The reversal of 149448253359409 is 904953352844941.

The square root of 149448253359409 is 12224903.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 23705671109409 + 125742582250000 = 4868847^2 + 11213500^2 .

It is not a de Polignac number, because 149448253359409 - 2³ = 149448253359401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149448253359401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6687010767 + ... + 6687033115.

Almost surely, 2^{149448253359409} is an apocalyptic number.

149448253359409 is the 12224903-rd square number.

149448253359409 is the 6112452-nd centered octagonal number.

It is an amenable number.

149448253359409 is a deficient number, since it is larger than the sum of its proper divisors (280413403898).

149448253359409 is an frugal number, since it uses more digits than its factorization.

149448253359409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45792 (or 22896 counting only the distinct ones).

The product of its (nonzero) digits is 671846400, while the sum is 70.

The spelling of 149448253359409 in words is "one hundred forty-nine trillion, four hundred forty-eight billion, two hundred fifty-three million, three hundred fifty-nine thousand, four hundred nine".