1071540393254 has 4 divisors (see below), whose sum is σ = 1607310589884. Its totient is φ = 535770196626.

The previous prime is 1071540393221. The next prime is 1071540393277. The reversal of 1071540393254 is 4523930451701.

It is a happy number.

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

It is a super-2 number, since 2×1071540393254² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267885098312 + ... + 267885098315.

It is an arithmetic number, because the mean of its divisors is an integer number (401827647471).

Almost surely, 2^{1071540393254} is an apocalyptic number.

1071540393254 is a deficient number, since it is larger than the sum of its proper divisors (535770196630).

1071540393254 is an equidigital number, since it uses as much as digits as its factorization.

1071540393254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535770196629.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 1071540393254 in words is "one trillion, seventy-one billion, five hundred forty million, three hundred ninety-three thousand, two hundred fifty-four".