1042172759 has 2 divisors, whose sum is σ = 1042172760. Its totient is φ = 1042172758.

The previous prime is 1042172731. The next prime is 1042172767. The reversal of 1042172759 is 9572712401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042172759 - 2¹⁶ = 1042107223 is a prime.

It is a super-2 number, since 2×1042172759² = 2172248119203344162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042172959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521086379 + 521086380.

It is an arithmetic number, because the mean of its divisors is an integer number (521086380).

Almost surely, 2^1042172759 is an apocalyptic number.

1042172759 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042172759 is an equidigital number, since it uses as much as digits as its factorization.

1042172759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1042172759 is about 32282.7006150353. The cubic root of 1042172759 is about 1013.8644743251.

The spelling of 1042172759 in words is "one billion, forty-two million, one hundred seventy-two thousand, seven hundred fifty-nine".