1340521254 has 12 divisors (see below), whose sum is σ = 2904462756. Its totient is φ = 446840412.

The previous prime is 1340521243. The next prime is 1340521267. The reversal of 1340521254 is 4521250431.

1340521254 is a `hidden beast` number, since 1 + 3 + 405 + 2 + 1 + 254 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37236684 + ... + 37236719.

It is an arithmetic number, because the mean of its divisors is an integer number (242038563).

Almost surely, 2^1340521254 is an apocalyptic number.

1340521254 is an abundant number, since it is smaller than the sum of its proper divisors (1563941502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340521254 is a wasteful number, since it uses less digits than its factorization.

1340521254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74473411 (or 74473408 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1340521254 is about 36613.1295302655. The cubic root of 1340521254 is about 1102.6167053713.

Adding to 1340521254 its reverse (4521250431), we get a palindrome (5861771685).

The spelling of 1340521254 in words is "one billion, three hundred forty million, five hundred twenty-one thousand, two hundred fifty-four".