251455000147 has 8 divisors (see below), whose sum is σ = 270840976560. Its totient is φ = 232075207200.

The previous prime is 251455000073. The next prime is 251455000151. The reversal of 251455000147 is 741000554152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 251455000147 - 2⁷ = 251455000019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251455000157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1461229 + ... + 1624222.

It is an arithmetic number, because the mean of its divisors is an integer number (33855122070).

Almost surely, 2^251455000147 is an apocalyptic number.

251455000147 is a deficient number, since it is larger than the sum of its proper divisors (19385976413).

251455000147 is a wasteful number, since it uses less digits than its factorization.

251455000147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091733.

The product of its (nonzero) digits is 28000, while the sum is 34.

Adding to 251455000147 its reverse (741000554152), we get a palindrome (992455554299).

The spelling of 251455000147 in words is "two hundred fifty-one billion, four hundred fifty-five million, one hundred forty-seven", and thus it is an aban number.