143770642 has 8 divisors (see below), whose sum is σ = 215919216. Its totient is φ = 71797572.

The previous prime is 143770639. The next prime is 143770643. The reversal of 143770642 is 246077341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 143770598 and 143770607.

It is not an unprimeable number, because it can be changed into a prime (143770643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41808 + ... + 45115.

It is an arithmetic number, because the mean of its divisors is an integer number (26989902).

Almost surely, 2^143770642 is an apocalyptic number.

143770642 is a deficient number, since it is larger than the sum of its proper divisors (72148574).

143770642 is an equidigital number, since it uses as much as digits as its factorization.

143770642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87752.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 143770642 is about 11990.4396082879. The cubic root of 143770642 is about 523.8698494817.

The spelling of 143770642 in words is "one hundred forty-three million, seven hundred seventy thousand, six hundred forty-two".