1825139712 has 88 divisors (see below), whose sum is σ = 5307003072. Its totient is φ = 553062400.

The previous prime is 1825139711. The next prime is 1825139713. The reversal of 1825139712 is 2179315281.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1825139711) and next prime (1825139713).

It is a tau number, because it is divible by the number of its divisors (88).

It is a super-2 number, since 2×1825139712² = 6662269936638885888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1825139711) 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, 6787 + ... + 60797.

Almost surely, 2^1825139712 is an apocalyptic number.

1825139712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1825139712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2653501536).

1825139712 is an abundant number, since it is smaller than the sum of its proper divisors (3481863360).

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

1825139712 is a wasteful number, since it uses less digits than its factorization.

1825139712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54045 (or 54027 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 1825139712 is about 42721.6539005690. The cubic root of 1825139712 is about 1222.0773780138.

The spelling of 1825139712 in words is "one billion, eight hundred twenty-five million, one hundred thirty-nine thousand, seven hundred twelve".