1245254145 has 8 divisors (see below), whose sum is σ = 1992406656. Its totient is φ = 664135536.

The previous prime is 1245254137. The next prime is 1245254189. The reversal of 1245254145 is 5414525421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1245254145 - 2³ = 1245254137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41508457 + ... + 41508486.

It is an arithmetic number, because the mean of its divisors is an integer number (249050832).

Almost surely, 2^1245254145 is an apocalyptic number.

1245254145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245254145 is a deficient number, since it is larger than the sum of its proper divisors (747152511).

1245254145 is an equidigital number, since it uses as much as digits as its factorization.

1245254145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83016951.

The product of its digits is 32000, while the sum is 33.

The square root of 1245254145 is about 35288.1587079859. The cubic root of 1245254145 is about 1075.8523314278.

Adding to 1245254145 its reverse (5414525421), we get a palindrome (6659779566).

The spelling of 1245254145 in words is "one billion, two hundred forty-five million, two hundred fifty-four thousand, one hundred forty-five".