1145162047 has 8 divisors (see below), whose sum is σ = 1154085120. Its totient is φ = 1136273880.

The previous prime is 1145162027. The next prime is 1145162069. The reversal of 1145162047 is 7402615411.

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 1145162047 - 2¹⁹ = 1144637759 is a prime.

It is a super-2 number, since 2×1145162047² = 2622792227778460418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145162027) 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, 59172 + ... + 76102.

It is an arithmetic number, because the mean of its divisors is an integer number (144260640).

Almost surely, 2^1145162047 is an apocalyptic number.

1145162047 is a deficient number, since it is larger than the sum of its proper divisors (8923073).

1145162047 is a wasteful number, since it uses less digits than its factorization.

1145162047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17453.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1145162047 is about 33840.2430103568. The cubic root of 1145162047 is about 1046.2183075768.

Adding to 1145162047 its reverse (7402615411), we get a palindrome (8547777458).

The spelling of 1145162047 in words is "one billion, one hundred forty-five million, one hundred sixty-two thousand, forty-seven".