1025544130 has 16 divisors (see below), whose sum is σ = 1987978104. Its totient is φ = 378662400.

The previous prime is 1025544101. The next prime is 1025544151. The reversal of 1025544130 is 314455201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 646735761 + 378808369 = 25431^2 + 19463^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1025544095 and 1025544104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3944271 + ... + 3944530.

Almost surely, 2^1025544130 is an apocalyptic number.

1025544130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025544130 is a deficient number, since it is larger than the sum of its proper divisors (962433974).

1025544130 is a wasteful number, since it uses less digits than its factorization.

1025544130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888821.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1025544130 is about 32024.1179425757. The cubic root of 1025544130 is about 1008.4432213793.

Adding to 1025544130 its reverse (314455201), we get a palindrome (1339999331).

The spelling of 1025544130 in words is "one billion, twenty-five million, five hundred forty-four thousand, one hundred thirty".