1245423151 has 6 divisors (see below), whose sum is σ = 1448757600. Its totient is φ = 1067505516.

The previous prime is 1245423139. The next prime is 1245423167. The reversal of 1245423151 is 1513245421.

It is not a de Polignac number, because 1245423151 - 2⁹ = 1245422639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245423551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12708351 + ... + 12708448.

It is an arithmetic number, because the mean of its divisors is an integer number (241459600).

Almost surely, 2^1245423151 is an apocalyptic number.

1245423151 is a deficient number, since it is larger than the sum of its proper divisors (203334449).

1245423151 is an equidigital number, since it uses as much as digits as its factorization.

1245423151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25416813 (or 25416806 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 1245423151 is about 35290.5532827129. The cubic root of 1245423151 is about 1075.9010008165.

Adding to 1245423151 its reverse (1513245421), we get a palindrome (2758668572).

The spelling of 1245423151 in words is "one billion, two hundred forty-five million, four hundred twenty-three thousand, one hundred fifty-one".