1772142971 has 2 divisors, whose sum is σ = 1772142972. Its totient is φ = 1772142970.

The previous prime is 1772142949. The next prime is 1772142989. The reversal of 1772142971 is 1792412771.

It is a strong prime.

It is an emirp because it is prime and its reverse (1792412771) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1772142971 - 2⁶ = 1772142907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1772142871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 886071485 + 886071486.

It is an arithmetic number, because the mean of its divisors is an integer number (886071486).

Almost surely, 2^1772142971 is an apocalyptic number.

1772142971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1772142971 is an equidigital number, since it uses as much as digits as its factorization.

1772142971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 41.

The square root of 1772142971 is about 42096.8285147468. The cubic root of 1772142971 is about 1210.1324835017.

The spelling of 1772142971 in words is "one billion, seven hundred seventy-two million, one hundred forty-two thousand, nine hundred seventy-one".