154214348746249 has 9 divisors (see below), whose sum is σ = 169508483894631. Its totient is φ = 140194738313520.

The previous prime is 154214348746223. The next prime is 154214348746273. The reversal of 154214348746249 is 942647843412451.

The square root of 154214348746249 is 12418307.

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., 141203668897225 + 13010679849024 = 11882915^2 + 3607032^2 .

It is not a de Polignac number, because 154214348746249 - 2³¹ = 154212201262601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154214348746219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 136036909 + ... + 137165845.

Almost surely, 2^{154214348746249} is an apocalyptic number.

154214348746249 is the 12418307-th square number.

154214348746249 is the 6209154-th centered octagonal number.

It is an amenable number.

154214348746249 is a deficient number, since it is larger than the sum of its proper divisors (15294135148382).

154214348746249 is an frugal number, since it uses more digits than its factorization.

154214348746249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257896 (or 1128948 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 64.

The spelling of 154214348746249 in words is "one hundred fifty-four trillion, two hundred fourteen billion, three hundred forty-eight million, seven hundred forty-six thousand, two hundred forty-nine".