1356220562 has 4 divisors (see below), whose sum is σ = 2034330846. Its totient is φ = 678110280.

The previous prime is 1356220493. The next prime is 1356220597. The reversal of 1356220562 is 2650226531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2650226531 = 97 ⋅27321923.

It can be written as a sum of positive squares in only one way, i.e., 951043921 + 405176641 = 30839^2 + 20129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339055139 + ... + 339055142.

Almost surely, 2^1356220562 is an apocalyptic number.

1356220562 is a deficient number, since it is larger than the sum of its proper divisors (678110284).

1356220562 is an equidigital number, since it uses as much as digits as its factorization.

1356220562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678110283.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1356220562 is about 36826.8999781410. The cubic root of 1356220562 is about 1106.9043856959.

The spelling of 1356220562 in words is "one billion, three hundred fifty-six million, two hundred twenty thousand, five hundred sixty-two".