1025403146 has 4 divisors (see below), whose sum is σ = 1538104722. Its totient is φ = 512701572.

The previous prime is 1025403143. The next prime is 1025403157. The reversal of 1025403146 is 6413045201.

1025403146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6413045201 = 17 ⋅377237953.

It can be written as a sum of positive squares in only one way, i.e., 930555025 + 94848121 = 30505^2 + 9739^2 .

It is a super-2 number, since 2×1025403146² = 2102903223653394632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1025403143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256350785 + ... + 256350788.

Almost surely, 2^1025403146 is an apocalyptic number.

1025403146 is a deficient number, since it is larger than the sum of its proper divisors (512701576).

1025403146 is an equidigital number, since it uses as much as digits as its factorization.

1025403146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512701575.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1025403146 is about 32021.9166509439. The cubic root of 1025403146 is about 1008.3970082292.

Adding to 1025403146 its reverse (6413045201), we get a palindrome (7438448347).

The spelling of 1025403146 in words is "one billion, twenty-five million, four hundred three thousand, one hundred forty-six".