1294472551 has 4 divisors (see below), whose sum is σ = 1300607704. Its totient is φ = 1288337400.

The previous prime is 1294472537. The next prime is 1294472563. The reversal of 1294472551 is 1552744921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1294472551 - 2¹³ = 1294464359 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 (1294472581) 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, 3067260 + ... + 3067681.

It is an arithmetic number, because the mean of its divisors is an integer number (325151926).

Almost surely, 2^1294472551 is an apocalyptic number.

1294472551 is a deficient number, since it is larger than the sum of its proper divisors (6135153).

1294472551 is an equidigital number, since it uses as much as digits as its factorization.

1294472551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135152.

The product of its digits is 100800, while the sum is 40.

The square root of 1294472551 is about 35978.7791760643. The cubic root of 1294472551 is about 1089.8438603043.

The spelling of 1294472551 in words is "one billion, two hundred ninety-four million, four hundred seventy-two thousand, five hundred fifty-one".