1421542312 has 16 divisors (see below), whose sum is σ = 2822179860. Its totient is φ = 668961024.

The previous prime is 1421542279. The next prime is 1421542321. The reversal of 1421542312 is 2132451241.

It can be written as a sum of positive squares in 2 ways, for example, as 1206450756 + 215091556 = 34734^2 + 14666^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5226123 + ... + 5226394.

Almost surely, 2^1421542312 is an apocalyptic number.

It is an amenable number.

1421542312 is a deficient number, since it is larger than the sum of its proper divisors (1400637548).

1421542312 is a wasteful number, since it uses less digits than its factorization.

1421542312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10452540 (or 10452536 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1421542312 is about 37703.3461644985. The cubic root of 1421542312 is about 1124.3976527259.

Adding to 1421542312 its reverse (2132451241), we get a palindrome (3553993553).

The spelling of 1421542312 in words is "one billion, four hundred twenty-one million, five hundred forty-two thousand, three hundred twelve".