1615223141 has 4 divisors (see below), whose sum is σ = 1845969312. Its totient is φ = 1384476972.

The previous prime is 1615223131. The next prime is 1615223191. The reversal of 1615223141 is 1413225161.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1615223141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1615223141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1615223111) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 115373075 + ... + 115373088.

It is an arithmetic number, because the mean of its divisors is an integer number (461492328).

Almost surely, 2^1615223141 is an apocalyptic number.

It is an amenable number.

1615223141 is a deficient number, since it is larger than the sum of its proper divisors (230746171).

1615223141 is an equidigital number, since it uses as much as digits as its factorization.

1615223141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230746170.

The product of its digits is 1440, while the sum is 26.

The square root of 1615223141 is about 40189.8387779797. The cubic root of 1615223141 is about 1173.3047873045.

It can be divided in two parts, 16152 and 23141, that added together give a palindrome (39293).

The spelling of 1615223141 in words is "one billion, six hundred fifteen million, two hundred twenty-three thousand, one hundred forty-one".