1421525140052 has 24 divisors (see below), whose sum is σ = 2536323312936. Its totient is φ = 696973897728.

The previous prime is 1421525139971. The next prime is 1421525140129. The reversal of 1421525140052 is 2500415251241.

It can be written as a sum of positive squares in 4 ways, for example, as 725011378576 + 696513761476 = 851476^2 + 834574^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14019533 + ... + 14120564.

It is an arithmetic number, because the mean of its divisors is an integer number (105680138039).

Almost surely, 2^{1421525140052} is an apocalyptic number.

It is an amenable number.

1421525140052 is a deficient number, since it is larger than the sum of its proper divisors (1114798172884).

1421525140052 is a wasteful number, since it uses less digits than its factorization.

1421525140052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28140347 (or 28140345 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 1421525140052 in words is "one trillion, four hundred twenty-one billion, five hundred twenty-five million, one hundred forty thousand, fifty-two".