1142720002 has 16 divisors (see below), whose sum is σ = 1866513600. Its totient is φ = 522622800.

The previous prime is 1142719987. The next prime is 1142720003. The reversal of 1142720002 is 2000272411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1142720003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517374 + ... + 519577.

It is an arithmetic number, because the mean of its divisors is an integer number (116657100).

Almost surely, 2^1142720002 is an apocalyptic number.

1142720002 is a deficient number, since it is larger than the sum of its proper divisors (723793598).

1142720002 is a wasteful number, since it uses less digits than its factorization.

1142720002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037001.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1142720002 is about 33804.1417876567. The cubic root of 1142720002 is about 1045.4740954497.

Adding to 1142720002 its reverse (2000272411), we get a palindrome (3142992413).

The spelling of 1142720002 in words is "one billion, one hundred forty-two million, seven hundred twenty thousand, two".