1451157146 has 4 divisors (see below), whose sum is σ = 2176735722. Its totient is φ = 725578572.

The previous prime is 1451157139. The next prime is 1451157161. The reversal of 1451157146 is 6417511541.

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

It can be written as a sum of positive squares in only one way, i.e., 1433001025 + 18156121 = 37855^2 + 4261^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362789285 + ... + 362789288.

Almost surely, 2^1451157146 is an apocalyptic number.

1451157146 is a deficient number, since it is larger than the sum of its proper divisors (725578576).

1451157146 is an equidigital number, since it uses as much as digits as its factorization.

1451157146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725578575.

The product of its digits is 16800, while the sum is 35.

The square root of 1451157146 is about 38094.0565705465. The cubic root of 1451157146 is about 1132.1522002939.

Adding to 1451157146 its reverse (6417511541), we get a palindrome (7868668687).

The spelling of 1451157146 in words is "one billion, four hundred fifty-one million, one hundred fifty-seven thousand, one hundred forty-six".