1072651439 has 2 divisors, whose sum is σ = 1072651440. Its totient is φ = 1072651438.

The previous prime is 1072651427. The next prime is 1072651477. The reversal of 1072651439 is 9341562701.

It is an a-pointer prime, because the next prime (1072651477) can be obtained adding 1072651439 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072651439 is a prime.

It is a super-2 number, since 2×1072651439² = 2301162219177541442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072651409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536325719 + 536325720.

It is an arithmetic number, because the mean of its divisors is an integer number (536325720).

Almost surely, 2^1072651439 is an apocalyptic number.

1072651439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072651439 is an equidigital number, since it uses as much as digits as its factorization.

1072651439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1072651439 is about 32751.3578191806. The cubic root of 1072651439 is about 1023.6532585450.

The spelling of 1072651439 in words is "one billion, seventy-two million, six hundred fifty-one thousand, four hundred thirty-nine".