1151400447 has 32 divisors (see below), whose sum is σ = 1828085760. Its totient is φ = 714368160.

The previous prime is 1151400433. The next prime is 1151400449. The reversal of 1151400447 is 7440041511.

It is not a de Polignac number, because 1151400447 - 2¹⁰ = 1151399423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1151400447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151400449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2079 + ... + 48032.

It is an arithmetic number, because the mean of its divisors is an integer number (57127680).

Almost surely, 2^1151400447 is an apocalyptic number.

1151400447 is a deficient number, since it is larger than the sum of its proper divisors (676685313).

1151400447 is a wasteful number, since it uses less digits than its factorization.

1151400447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50180 (or 50174 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1151400447 is about 33932.2920976465. The cubic root of 1151400447 is about 1048.1146657818.

Adding to 1151400447 its reverse (7440041511), we get a palindrome (8591441958).

The spelling of 1151400447 in words is "one billion, one hundred fifty-one million, four hundred thousand, four hundred forty-seven".