1025567145 has 24 divisors (see below), whose sum is σ = 1802006856. Its totient is φ = 539474688.

The previous prime is 1025567131. The next prime is 1025567183. The reversal of 1025567145 is 5417655201.

1025567145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 108930969 + 916636176 = 10437^2 + 30276^2 .

It is not a de Polignac number, because 1025567145 - 2⁸ = 1025566889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152814 + ... + 159383.

It is an arithmetic number, because the mean of its divisors is an integer number (75083619).

Almost surely, 2^1025567145 is an apocalyptic number.

1025567145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1025567145 is a deficient number, since it is larger than the sum of its proper divisors (776439711).

1025567145 is a wasteful number, since it uses less digits than its factorization.

1025567145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312281 (or 312278 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 1025567145 is about 32024.4772791064. The cubic root of 1025567145 is about 1008.4507650648.

The spelling of 1025567145 in words is "one billion, twenty-five million, five hundred sixty-seven thousand, one hundred forty-five".