1625148113 has 4 divisors (see below), whose sum is σ = 1627040880. Its totient is φ = 1623255348.

The previous prime is 1625148089. The next prime is 1625148121. The reversal of 1625148113 is 3118415261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1625148113 - 2⁸ = 1625147857 is a prime.

It is a super-2 number, since 2×1625148113² = 5282212778374921538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1625148113.

It is not an unprimeable number, because it can be changed into a prime (1625148143) 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, 945095 + ... + 946812.

It is an arithmetic number, because the mean of its divisors is an integer number (406760220).

Almost surely, 2^1625148113 is an apocalyptic number.

It is an amenable number.

1625148113 is a deficient number, since it is larger than the sum of its proper divisors (1892767).

1625148113 is an equidigital number, since it uses as much as digits as its factorization.

1625148113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892766.

The product of its digits is 5760, while the sum is 32.

The square root of 1625148113 is about 40313.1258152974. The cubic root of 1625148113 is about 1175.7030620813.

It can be divided in two parts, 1625148 and 113, that added together give a palindrome (1625261).

The spelling of 1625148113 in words is "one billion, six hundred twenty-five million, one hundred forty-eight thousand, one hundred thirteen".