1956143042 has 16 divisors (see below), whose sum is σ = 3356989440. Its totient is φ = 837446688.

The previous prime is 1956143041. The next prime is 1956143051. The reversal of 1956143042 is 2403416591.

It is a junction number, because it is equal to n+sod(n) for n = 1956142993 and 1956143011.

It is not an unprimeable number, because it can be changed into a prime (1956143041) 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, 61442 + ... + 87677.

It is an arithmetic number, because the mean of its divisors is an integer number (209811840).

Almost surely, 2^1956143042 is an apocalyptic number.

1956143042 is a deficient number, since it is larger than the sum of its proper divisors (1400846398).

1956143042 is a wasteful number, since it uses less digits than its factorization.

1956143042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150065.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1956143042 is about 44228.3058911372. The cubic root of 1956143042 is about 1250.6435176112.

The spelling of 1956143042 in words is "one billion, nine hundred fifty-six million, one hundred forty-three thousand, forty-two".