1254781130 has 32 divisors (see below), whose sum is σ = 2276503488. Its totient is φ = 497952000.

The previous prime is 1254781127. The next prime is 1254781133. The reversal of 1254781130 is 311874521.

It is an interprime number because it is at equal distance from previous prime (1254781127) and next prime (1254781133).

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1254781133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845369 + ... + 846851.

It is an arithmetic number, because the mean of its divisors is an integer number (71140734).

Almost surely, 2^1254781130 is an apocalyptic number.

1254781130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1254781130 is a deficient number, since it is larger than the sum of its proper divisors (1021722358).

1254781130 is a wasteful number, since it uses less digits than its factorization.

1254781130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1254781130 is about 35422.8899159851. The cubic root of 1254781130 is about 1078.5890153078.

The spelling of 1254781130 in words is "one billion, two hundred fifty-four million, seven hundred eighty-one thousand, one hundred thirty".