1611243134 has 4 divisors (see below), whose sum is σ = 2416864704. Its totient is φ = 805621566.

The previous prime is 1611243121. The next prime is 1611243167. The reversal of 1611243134 is 4313421161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4313421161 = 7 ⋅616203023.

It is a super-2 number, since 2×1611243134² = 5192208873724283912, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402810782 + ... + 402810785.

It is an arithmetic number, because the mean of its divisors is an integer number (604216176).

Almost surely, 2^1611243134 is an apocalyptic number.

1611243134 is a deficient number, since it is larger than the sum of its proper divisors (805621570).

1611243134 is an equidigital number, since it uses as much as digits as its factorization.

1611243134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805621569.

The product of its digits is 1728, while the sum is 26.

The square root of 1611243134 is about 40140.2931479081. The cubic root of 1611243134 is about 1172.3402968199.

Adding to 1611243134 its reverse (4313421161), we get a palindrome (5924664295).

The spelling of 1611243134 in words is "one billion, six hundred eleven million, two hundred forty-three thousand, one hundred thirty-four".