149459109270409 has 3 divisors (see below), whose sum is σ = 149459121495757. Its totient is φ = 149459097045062.

The previous prime is 149459109270307. The next prime is 149459109270413. The reversal of 149459109270409 is 904072901954941.

The square root of 149459109270409 is 12225347.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 149459109270409 - 2¹⁷ = 149459109139337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149459109270469) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6112674 + ... + 18338020.

Almost surely, 2^{149459109270409} is an apocalyptic number.

149459109270409 is the 12225347-th square number.

149459109270409 is the 6112674-th centered octagonal number.

It is an amenable number.

149459109270409 is a deficient number, since it is larger than the sum of its proper divisors (12225348).

149459109270409 is an frugal number, since it uses more digits than its factorization.

149459109270409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24450694 (or 12225347 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 149459109270409 in words is "one hundred forty-nine trillion, four hundred fifty-nine billion, one hundred nine million, two hundred seventy thousand, four hundred nine".