1254772409 has 4 divisors (see below), whose sum is σ = 1368842640. Its totient is φ = 1140702180.

The previous prime is 1254772361. The next prime is 1254772423. The reversal of 1254772409 is 9042774521.

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 1254772409 - 2¹² = 1254768313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1254772439) 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, 57035099 + ... + 57035120.

It is an arithmetic number, because the mean of its divisors is an integer number (342210660).

Almost surely, 2^1254772409 is an apocalyptic number.

It is an amenable number.

1254772409 is a deficient number, since it is larger than the sum of its proper divisors (114070231).

1254772409 is a wasteful number, since it uses less digits than its factorization.

1254772409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114070230.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 1254772409 is about 35422.7668174015. The cubic root of 1254772409 is about 1078.5865164931.

The spelling of 1254772409 in words is "one billion, two hundred fifty-four million, seven hundred seventy-two thousand, four hundred nine".