1357043234 has 4 divisors (see below), whose sum is σ = 2035564854. Its totient is φ = 678521616.

The previous prime is 1357043203. The next prime is 1357043243. The reversal of 1357043234 is 4323407531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4323407531 = 53 ⋅81573727.

It can be written as a sum of positive squares in only one way, i.e., 876337609 + 480705625 = 29603^2 + 21925^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1357043234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339260807 + ... + 339260810.

Almost surely, 2^1357043234 is an apocalyptic number.

1357043234 is a deficient number, since it is larger than the sum of its proper divisors (678521620).

1357043234 is an equidigital number, since it uses as much as digits as its factorization.

1357043234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678521619.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 1357043234 is about 36838.0677289133. The cubic root of 1357043234 is about 1107.1281534241.

The spelling of 1357043234 in words is "one billion, three hundred fifty-seven million, forty-three thousand, two hundred thirty-four".