249154149289 has 4 divisors (see below), whose sum is σ = 252307999360. Its totient is φ = 246000299220.

The previous prime is 249154149239. The next prime is 249154149319. The reversal of 249154149289 is 982941451942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 249154149289 - 2¹³ = 249154141097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249154149239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576924917 + ... + 1576925074.

It is an arithmetic number, because the mean of its divisors is an integer number (63076999840).

Almost surely, 2^249154149289 is an apocalyptic number.

It is an amenable number.

249154149289 is a deficient number, since it is larger than the sum of its proper divisors (3153850071).

249154149289 is an equidigital number, since it uses as much as digits as its factorization.

249154149289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153850070.

The product of its digits is 7464960, while the sum is 58.

The spelling of 249154149289 in words is "two hundred forty-nine billion, one hundred fifty-four million, one hundred forty-nine thousand, two hundred eighty-nine".