1540430740225 has 24 divisors (see below), whose sum is σ = 2146505239872. Its totient is φ = 1088090203200.

The previous prime is 1540430740217. The next prime is 1540430740253. The reversal of 1540430740225 is 5220470340451.

It is not a de Polignac number, because 1540430740225 - 2³ = 1540430740217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103031371 + ... + 103046320.

It is an arithmetic number, because the mean of its divisors is an integer number (89437718328).

Almost surely, 2^{1540430740225} is an apocalyptic number.

It is an amenable number.

1540430740225 is a deficient number, since it is larger than the sum of its proper divisors (606074499647).

1540430740225 is a wasteful number, since it uses less digits than its factorization.

1540430740225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206077737 (or 206077732 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 1540430740225 in words is "one trillion, five hundred forty billion, four hundred thirty million, seven hundred forty thousand, two hundred twenty-five".