1254323140 has 24 divisors (see below), whose sum is σ = 3010375872. Its totient is φ = 430053600.

The previous prime is 1254323131. The next prime is 1254323149. The reversal of 1254323140 is 413234521.

It is an interprime number because it is at equal distance from previous prime (1254323131) and next prime (1254323149).

It is not an unprimeable number, because it can be changed into a prime (1254323149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4479586 + ... + 4479865.

It is an arithmetic number, because the mean of its divisors is an integer number (125432328).

Almost surely, 2^1254323140 is an apocalyptic number.

1254323140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254323140 is an abundant number, since it is smaller than the sum of its proper divisors (1756052732).

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

1254323140 is a wasteful number, since it uses less digits than its factorization.

1254323140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8959467 (or 8959465 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1254323140 is about 35416.4247207422. The cubic root of 1254323140 is about 1078.4577724735.

Adding to 1254323140 its reverse (413234521), we get a palindrome (1667557661).

The spelling of 1254323140 in words is "one billion, two hundred fifty-four million, three hundred twenty-three thousand, one hundred forty".