1234140545 has 8 divisors (see below), whose sum is σ = 1615602240. Its totient is φ = 897556720.

The previous prime is 1234140499. The next prime is 1234140553. The reversal of 1234140545 is 5450414321.

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

It is not a de Polignac number, because 1234140545 - 2⁸ = 1234140289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11219405 + ... + 11219514.

It is an arithmetic number, because the mean of its divisors is an integer number (201950280).

Almost surely, 2^1234140545 is an apocalyptic number.

It is an amenable number.

1234140545 is a deficient number, since it is larger than the sum of its proper divisors (381461695).

1234140545 is a wasteful number, since it uses less digits than its factorization.

1234140545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22438935.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1234140545 is about 35130.3365341125. The cubic root of 1234140545 is about 1072.6421862372.

Adding to 1234140545 its reverse (5450414321), we get a palindrome (6684554866).

The spelling of 1234140545 in words is "one billion, two hundred thirty-four million, one hundred forty thousand, five hundred forty-five".