1254551197 has 4 divisors (see below), whose sum is σ = 1255524256. Its totient is φ = 1253578140.

The previous prime is 1254551173. The next prime is 1254551201. The reversal of 1254551197 is 7911554521.

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.

It is a cyclic number.

It is not a de Polignac number, because 1254551197 - 2⁷ = 1254551069 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 (1254551117) 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, 484593 + ... + 487174.

It is an arithmetic number, because the mean of its divisors is an integer number (313881064).

Almost surely, 2^1254551197 is an apocalyptic number.

It is an amenable number.

1254551197 is a deficient number, since it is larger than the sum of its proper divisors (973059).

1254551197 is an equidigital number, since it uses as much as digits as its factorization.

1254551197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973058.

The product of its digits is 63000, while the sum is 40.

The square root of 1254551197 is about 35419.6442246390. The cubic root of 1254551197 is about 1078.5231290874.

The spelling of 1254551197 in words is "one billion, two hundred fifty-four million, five hundred fifty-one thousand, one hundred ninety-seven".