1013870642 has 4 divisors (see below), whose sum is σ = 1520805966. Its totient is φ = 506935320.

The previous prime is 1013870639. The next prime is 1013870651. The reversal of 1013870642 is 2460783101.

1013870642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2460783101 = 7 ⋅351540443.

It can be written as a sum of positive squares in only one way, i.e., 704849401 + 309021241 = 26549^2 + 17579^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1013870599 and 1013870608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253467659 + ... + 253467662.

Almost surely, 2^1013870642 is an apocalyptic number.

1013870642 is a deficient number, since it is larger than the sum of its proper divisors (506935324).

1013870642 is an equidigital number, since it uses as much as digits as its factorization.

1013870642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506935323.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1013870642 is about 31841.3354305375. The cubic root of 1013870642 is about 1004.6023333662.

The spelling of 1013870642 in words is "one billion, thirteen million, eight hundred seventy thousand, six hundred forty-two".