1871552157 has 8 divisors (see below), whose sum is σ = 2537698080. Its totient is φ = 1226553840.

The previous prime is 1871552147. The next prime is 1871552161. The reversal of 1871552157 is 7512551781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1871552157 - 2⁴ = 1871552141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1871552147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5286694 + ... + 5287047.

It is an arithmetic number, because the mean of its divisors is an integer number (317212260).

Almost surely, 2^1871552157 is an apocalyptic number.

It is an amenable number.

1871552157 is a deficient number, since it is larger than the sum of its proper divisors (666145923).

1871552157 is a wasteful number, since it uses less digits than its factorization.

1871552157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10573803.

The product of its digits is 98000, while the sum is 42.

The square root of 1871552157 is about 43261.4396085012. The cubic root of 1871552157 is about 1232.3497412231.

The spelling of 1871552157 in words is "one billion, eight hundred seventy-one million, five hundred fifty-two thousand, one hundred fifty-seven".