1587142950 has 96 divisors (see below), whose sum is σ = 4193731584. Its totient is φ = 395850240.

The previous prime is 1587142939. The next prime is 1587142961. The reversal of 1587142950 is 592417851.

It is an interprime number because it is at equal distance from previous prime (1587142939) and next prime (1587142961).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 423987 + ... + 427713.

It is an arithmetic number, because the mean of its divisors is an integer number (43684704).

Almost surely, 2^1587142950 is an apocalyptic number.

1587142950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1587142950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2096865792).

1587142950 is an abundant number, since it is smaller than the sum of its proper divisors (2606588634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1587142950 is a wasteful number, since it uses less digits than its factorization.

1587142950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926 (or 3921 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 1587142950 is about 39838.9627124000. The cubic root of 1587142950 is about 1166.4658125884.

The spelling of 1587142950 in words is "one billion, five hundred eighty-seven million, one hundred forty-two thousand, nine hundred fifty".