1354861249 has 4 divisors (see below), whose sum is σ = 1548412864. Its totient is φ = 1161309636.

The previous prime is 1354861247. The next prime is 1354861259. The reversal of 1354861249 is 9421684531.

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 1354861249 - 2¹ = 1354861247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1354861247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96775797 + ... + 96775810.

It is an arithmetic number, because the mean of its divisors is an integer number (387103216).

Almost surely, 2^1354861249 is an apocalyptic number.

It is an amenable number.

1354861249 is a deficient number, since it is larger than the sum of its proper divisors (193551615).

1354861249 is an equidigital number, since it uses as much as digits as its factorization.

1354861249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193551614.

The product of its digits is 207360, while the sum is 43.

The square root of 1354861249 is about 36808.4399153238. The cubic root of 1354861249 is about 1106.5344526309.

The spelling of 1354861249 in words is "one billion, three hundred fifty-four million, eight hundred sixty-one thousand, two hundred forty-nine".