1461331642 has 8 divisors (see below), whose sum is σ = 2197358100. Its totient is φ = 728878944.

The previous prime is 1461331633. The next prime is 1461331649. The reversal of 1461331642 is 2461331641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1186733601 + 274598041 = 34449^2 + 16571^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1461331649) 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, 892417 + ... + 894052.

Almost surely, 2^1461331642 is an apocalyptic number.

1461331642 is a deficient number, since it is larger than the sum of its proper divisors (736026458).

1461331642 is a wasteful number, since it uses less digits than its factorization.

1461331642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786880.

The product of its digits is 10368, while the sum is 31.

The square root of 1461331642 is about 38227.3677095350. The cubic root of 1461331642 is about 1134.7919927768.

Subtracting 1461331642 from its reverse (2461331641), we obtain a palindrome (999999999).

The spelling of 1461331642 in words is "one billion, four hundred sixty-one million, three hundred thirty-one thousand, six hundred forty-two".