1000157381503 has 4 divisors (see below), whose sum is σ = 1143037007440. Its totient is φ = 857277755568.

The previous prime is 1000157381473. The next prime is 1000157381507. The reversal of 1000157381503 is 3051837510001.

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 1000157381503 - 2⁹ = 1000157380991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000157381507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71439812958 + ... + 71439812971.

It is an arithmetic number, because the mean of its divisors is an integer number (285759251860).

Almost surely, 2^{1000157381503} is an apocalyptic number.

1000157381503 is a deficient number, since it is larger than the sum of its proper divisors (142879625937).

1000157381503 is an equidigital number, since it uses as much as digits as its factorization.

1000157381503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142879625936.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 1000157381503 in words is "one trillion, one hundred fifty-seven million, three hundred eighty-one thousand, five hundred three".