1245254151 has 4 divisors (see below), whose sum is σ = 1660338872. Its totient is φ = 830169432.

The previous prime is 1245254137. The next prime is 1245254189. The reversal of 1245254151 is 1514525421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1245254151 - 2¹¹ = 1245252103 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 (1245254111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207542356 + ... + 207542361.

It is an arithmetic number, because the mean of its divisors is an integer number (415084718).

Almost surely, 2^1245254151 is an apocalyptic number.

1245254151 is a deficient number, since it is larger than the sum of its proper divisors (415084721).

1245254151 is an equidigital number, since it uses as much as digits as its factorization.

1245254151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415084720.

The product of its digits is 8000, while the sum is 30.

The square root of 1245254151 is about 35288.1587930002. The cubic root of 1245254151 is about 1075.8523331557.

Adding to 1245254151 its reverse (1514525421), we get a palindrome (2759779572).

The spelling of 1245254151 in words is "one billion, two hundred forty-five million, two hundred fifty-four thousand, one hundred fifty-one".