1612213742 has 4 divisors (see below), whose sum is σ = 2418320616. Its totient is φ = 806106870.

The previous prime is 1612213741. The next prime is 1612213753. The reversal of 1612213742 is 2473122161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2473122161 = 16691 ⋅148171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612213741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403053434 + ... + 403053437.

It is an arithmetic number, because the mean of its divisors is an integer number (604580154).

Almost surely, 2^1612213742 is an apocalyptic number.

1612213742 is a deficient number, since it is larger than the sum of its proper divisors (806106874).

1612213742 is an equidigital number, since it uses as much as digits as its factorization.

1612213742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806106873.

The product of its digits is 4032, while the sum is 29.

The square root of 1612213742 is about 40152.3815233916. The cubic root of 1612213742 is about 1172.5756543186.

The spelling of 1612213742 in words is "one billion, six hundred twelve million, two hundred thirteen thousand, seven hundred forty-two".