1145640334 has 8 divisors (see below), whose sum is σ = 1724849640. Its totient is φ = 570690456.

The previous prime is 1145640311. The next prime is 1145640337. The reversal of 1145640334 is 4330465411.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1145640296 and 1145640305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145640337) 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, 1064184 + ... + 1065259.

It is an arithmetic number, because the mean of its divisors is an integer number (215606205).

Almost surely, 2^1145640334 is an apocalyptic number.

1145640334 is a deficient number, since it is larger than the sum of its proper divisors (579209306).

1145640334 is a wasteful number, since it uses less digits than its factorization.

1145640334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129714.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1145640334 is about 33847.3091101789. The cubic root of 1145640334 is about 1046.3639413960.

The spelling of 1145640334 in words is "one billion, one hundred forty-five million, six hundred forty thousand, three hundred thirty-four".