1925130291 has 16 divisors (see below), whose sum is σ = 3061077504. Its totient is φ = 1052244864.

The previous prime is 1925130247. The next prime is 1925130329. The reversal of 1925130291 is 1920315291.

It is not a de Polignac number, because 1925130291 - 2¹⁸ = 1924868147 is a prime.

It is a super-2 number, since 2×1925130291² = 7412253274651489362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1925130241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1992406 + ... + 1993371.

It is an arithmetic number, because the mean of its divisors is an integer number (191317344).

Almost surely, 2^1925130291 is an apocalyptic number.

1925130291 is a deficient number, since it is larger than the sum of its proper divisors (1135947213).

1925130291 is a wasteful number, since it uses less digits than its factorization.

1925130291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985810.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 1925130291 is about 43876.3067155840. The cubic root of 1925130291 is about 1243.9990322242. Note that the first 3 decimals are identical.

The spelling of 1925130291 in words is "one billion, nine hundred twenty-five million, one hundred thirty thousand, two hundred ninety-one".