1253957443156 has 48 divisors (see below), whose sum is σ = 2440938644928. Its totient is φ = 558845164800.

The previous prime is 1253957443103. The next prime is 1253957443199. The reversal of 1253957443156 is 6513447593521.

It is a junction number, because it is equal to n+sod(n) for n = 1253957443097 and 1253957443106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93771 + ... + 1586413.

It is an arithmetic number, because the mean of its divisors is an integer number (50852888436).

Almost surely, 2^{1253957443156} is an apocalyptic number.

It is an amenable number.

1253957443156 is a deficient number, since it is larger than the sum of its proper divisors (1186981201772).

1253957443156 is a wasteful number, since it uses less digits than its factorization.

1253957443156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493032 (or 1493030 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 55.

The spelling of 1253957443156 in words is "one trillion, two hundred fifty-three billion, nine hundred fifty-seven million, four hundred forty-three thousand, one hundred fifty-six".