1072331251 has 2 divisors, whose sum is σ = 1072331252. Its totient is φ = 1072331250.

The previous prime is 1072331243. The next prime is 1072331263. The reversal of 1072331251 is 1521332701.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1072331251 - 2³ = 1072331243 is a prime.

It is a super-2 number, since 2×1072331251² = 2299788623742450002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1072331551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536165625 + 536165626.

It is an arithmetic number, because the mean of its divisors is an integer number (536165626).

Almost surely, 2^1072331251 is an apocalyptic number.

1072331251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072331251 is an equidigital number, since it uses as much as digits as its factorization.

1072331251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1072331251 is about 32746.4692905968. The cubic root of 1072331251 is about 1023.5513944180.

Adding to 1072331251 its reverse (1521332701), we get a palindrome (2593663952).

The spelling of 1072331251 in words is "one billion, seventy-two million, three hundred thirty-one thousand, two hundred fifty-one".