1254745481 has 4 divisors (see below), whose sum is σ = 1368813264. Its totient is φ = 1140677700.

The previous prime is 1254745463. The next prime is 1254745483. The reversal of 1254745481 is 1845474521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1845474521 = 11 ⋅167770411.

It is a cyclic number.

It is not a de Polignac number, because 1254745481 - 2¹⁸ = 1254483337 is a prime.

It is a super-2 number, since 2×1254745481² = 3148772444179842722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254745483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57033875 + ... + 57033896.

It is an arithmetic number, because the mean of its divisors is an integer number (342203316).

Almost surely, 2^1254745481 is an apocalyptic number.

1254745481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1254745481 is a deficient number, since it is larger than the sum of its proper divisors (114067783).

1254745481 is a wasteful number, since it uses less digits than its factorization.

1254745481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114067782.

The product of its digits is 179200, while the sum is 41.

The square root of 1254745481 is about 35422.3867208295. The cubic root of 1254745481 is about 1078.5788007817.

The spelling of 1254745481 in words is "one billion, two hundred fifty-four million, seven hundred forty-five thousand, four hundred eighty-one".