1451156642 has 16 divisors (see below), whose sum is σ = 2388408120. Its totient is φ = 657126912.

The previous prime is 1451156627. The next prime is 1451156653. The reversal of 1451156642 is 2466511541.

It can be written as a sum of positive squares in 4 ways, for example, as 811623121 + 639533521 = 28489^2 + 25289^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 525167 + ... + 527922.

Almost surely, 2^1451156642 is an apocalyptic number.

1451156642 is a deficient number, since it is larger than the sum of its proper divisors (937251478).

1451156642 is a wasteful number, since it uses less digits than its factorization.

1451156642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053157.

The product of its digits is 28800, while the sum is 35.

The square root of 1451156642 is about 38094.0499553408. The cubic root of 1451156642 is about 1132.1520692250.

The spelling of 1451156642 in words is "one billion, four hundred fifty-one million, one hundred fifty-six thousand, six hundred forty-two".