1254361540 has 24 divisors (see below), whose sum is σ = 2636065152. Its totient is φ = 501381600.

The previous prime is 1254361529. The next prime is 1254361561. The reversal of 1254361540 is 451634521.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6565 + ... + 50515.

It is an arithmetic number, because the mean of its divisors is an integer number (109836048).

Almost surely, 2^1254361540 is an apocalyptic number.

1254361540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254361540 is an abundant number, since it is smaller than the sum of its proper divisors (1381703612).

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

1254361540 is a wasteful number, since it uses less digits than its factorization.

1254361540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45387 (or 45385 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1254361540 is about 35416.9668379436. The cubic root of 1254361540 is about 1078.4687777066.

The spelling of 1254361540 in words is "one billion, two hundred fifty-four million, three hundred sixty-one thousand, five hundred forty".