1147392001 has 4 divisors (see below), whose sum is σ = 1311305152. Its totient is φ = 983478852.

The previous prime is 1147391983. The next prime is 1147392013. The reversal of 1147392001 is 1002937411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1002937411 = 7 ⋅143276773.

It is a cyclic number.

It is not a de Polignac number, because 1147392001 - 2¹¹ = 1147389953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147392031) 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, 81956565 + ... + 81956578.

It is an arithmetic number, because the mean of its divisors is an integer number (327826288).

Almost surely, 2^1147392001 is an apocalyptic number.

It is an amenable number.

1147392001 is a deficient number, since it is larger than the sum of its proper divisors (163913151).

1147392001 is an equidigital number, since it uses as much as digits as its factorization.

1147392001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163913150.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1147392001 is about 33873.1752423655. The cubic root of 1147392001 is about 1046.8969614533.

The spelling of 1147392001 in words is "one billion, one hundred forty-seven million, three hundred ninety-two thousand, one".