1235425739 has 2 divisors, whose sum is σ = 1235425740. Its totient is φ = 1235425738.

The previous prime is 1235425699. The next prime is 1235425747. The reversal of 1235425739 is 9375245321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1235425739 - 2⁸ = 1235425483 is a prime.

It is a super-2 number, since 2×1235425739² = 3052553513167392242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1235425696 and 1235425705.

It is not a weakly prime, because it can be changed into another prime (1235425759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617712869 + 617712870.

It is an arithmetic number, because the mean of its divisors is an integer number (617712870).

Almost surely, 2^1235425739 is an apocalyptic number.

1235425739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235425739 is an equidigital number, since it uses as much as digits as its factorization.

1235425739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 41.

The square root of 1235425739 is about 35148.6235719125. The cubic root of 1235425739 is about 1073.0143953446.

The spelling of 1235425739 in words is "one billion, two hundred thirty-five million, four hundred twenty-five thousand, seven hundred thirty-nine".