1025340543415 has 4 divisors (see below), whose sum is σ = 1230408652104. Its totient is φ = 820272434728.

The previous prime is 1025340543379. The next prime is 1025340543449. The reversal of 1025340543415 is 5143450435201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1025340543415 - 2⁷ = 1025340543287 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 102534054337 + ... + 102534054346.

It is an arithmetic number, because the mean of its divisors is an integer number (307602163026).

Almost surely, 2^{1025340543415} is an apocalyptic number.

1025340543415 is a deficient number, since it is larger than the sum of its proper divisors (205068108689).

1025340543415 is an equidigital number, since it uses as much as digits as its factorization.

1025340543415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205068108688.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 1025340543415 its reverse (5143450435201), we get a palindrome (6168790978616).

The spelling of 1025340543415 in words is "one trillion, twenty-five billion, three hundred forty million, five hundred forty-three thousand, four hundred fifteen".