1254601243 has 12 divisors (see below), whose sum is σ = 1464205512. Its totient is φ = 1071856800.

The previous prime is 1254601163. The next prime is 1254601253. The reversal of 1254601243 is 3421064521.

It is a de Polignac number, because none of the positive numbers 2^k-1254601243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1254601253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26658 + ... + 56743.

It is an arithmetic number, because the mean of its divisors is an integer number (122017126).

Almost surely, 2^1254601243 is an apocalyptic number.

1254601243 is a deficient number, since it is larger than the sum of its proper divisors (209604269).

1254601243 is an equidigital number, since it uses as much as digits as its factorization.

1254601243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83722 (or 83715 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1254601243 is about 35420.3506899635. The cubic root of 1254601243 is about 1078.5374702189.

Adding to 1254601243 its reverse (3421064521), we get a palindrome (4675665764).

The spelling of 1254601243 in words is "one billion, two hundred fifty-four million, six hundred one thousand, two hundred forty-three".