1254661351 has 4 divisors (see below), whose sum is σ = 1254758400. Its totient is φ = 1254564304.

The previous prime is 1254661337. The next prime is 1254661361. The reversal of 1254661351 is 1531664521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1254661351 - 2⁷ = 1254661223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254661361) 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, 25486 + ... + 56203.

It is an arithmetic number, because the mean of its divisors is an integer number (313689600).

Almost surely, 2^1254661351 is an apocalyptic number.

1254661351 is a deficient number, since it is larger than the sum of its proper divisors (97049).

1254661351 is an equidigital number, since it uses as much as digits as its factorization.

1254661351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97048.

The product of its digits is 21600, while the sum is 34.

The square root of 1254661351 is about 35421.1991750703. The cubic root of 1254661351 is about 1078.5546942028.

The spelling of 1254661351 in words is "one billion, two hundred fifty-four million, six hundred sixty-one thousand, three hundred fifty-one".