1025787134 has 4 divisors (see below), whose sum is σ = 1538680704. Its totient is φ = 512893566.

The previous prime is 1025787131. The next prime is 1025787137. The reversal of 1025787134 is 4317875201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4317875201 = 1877 ⋅2300413.

It is an interprime number because it is at equal distance from previous prime (1025787131) and next prime (1025787137).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025787131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256446782 + ... + 256446785.

It is an arithmetic number, because the mean of its divisors is an integer number (384670176).

Almost surely, 2^1025787134 is an apocalyptic number.

1025787134 is a deficient number, since it is larger than the sum of its proper divisors (512893570).

1025787134 is an equidigital number, since it uses as much as digits as its factorization.

1025787134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512893569.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 1025787134 is about 32027.9117958071. The cubic root of 1025787134 is about 1008.5228657283.

The spelling of 1025787134 in words is "one billion, twenty-five million, seven hundred eighty-seven thousand, one hundred thirty-four".