143772061 has 4 divisors (see below), whose sum is σ = 144100000. Its totient is φ = 143444124.

The previous prime is 143772049. The next prime is 143772067. The reversal of 143772061 is 160277341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143772061 - 2⁷ = 143771933 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 (143772067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163311 + ... + 164188.

It is an arithmetic number, because the mean of its divisors is an integer number (36025000).

Almost surely, 2^143772061 is an apocalyptic number.

It is an amenable number.

143772061 is a deficient number, since it is larger than the sum of its proper divisors (327939).

143772061 is an equidigital number, since it uses as much as digits as its factorization.

143772061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327938.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 143772061 is about 11990.4987802843. The cubic root of 143772061 is about 523.8715729881.

The spelling of 143772061 in words is "one hundred forty-three million, seven hundred seventy-two thousand, sixty-one".