1247020714 has 4 divisors (see below), whose sum is σ = 1870531074. Its totient is φ = 623510356.

The previous prime is 1247020633. The next prime is 1247020727. The reversal of 1247020714 is 4170207421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1245737025 + 1283689 = 35295^2 + 1133^2 .

It is a super-2 number, since 2×1247020714² = 3110121322290139592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311755177 + ... + 311755180.

Almost surely, 2^1247020714 is an apocalyptic number.

1247020714 is a deficient number, since it is larger than the sum of its proper divisors (623510360).

1247020714 is an equidigital number, since it uses as much as digits as its factorization.

1247020714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623510359.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 1247020714 is about 35313.1804571608. The cubic root of 1247020714 is about 1076.3608405680.

The spelling of 1247020714 in words is "one billion, two hundred forty-seven million, twenty thousand, seven hundred fourteen".