1220076143 has 16 divisors (see below), whose sum is σ = 1434367872. Its totient is φ = 1023132000.

The previous prime is 1220076113. The next prime is 1220076157. The reversal of 1220076143 is 3416700221.

It is not a de Polignac number, because 1220076143 - 2¹⁶ = 1220010607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220076113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360248 + ... + 363618.

It is an arithmetic number, because the mean of its divisors is an integer number (89647992).

Almost surely, 2^1220076143 is an apocalyptic number.

1220076143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1220076143 is a deficient number, since it is larger than the sum of its proper divisors (214291729).

1220076143 is a wasteful number, since it uses less digits than its factorization.

1220076143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1220076143 is about 34929.5883600136. The cubic root of 1220076143 is about 1068.5519594840.

Adding to 1220076143 its reverse (3416700221), we get a palindrome (4636776364).

The spelling of 1220076143 in words is "one billion, two hundred twenty million, seventy-six thousand, one hundred forty-three".