1025123133 has 16 divisors (see below), whose sum is σ = 1427005440. Its totient is φ = 653359344.

The previous prime is 1025123119. The next prime is 1025123153. The reversal of 1025123133 is 3313215201.

It is not a de Polignac number, because 1025123133 - 2⁵ = 1025123101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025123153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229560 + ... + 233982.

It is an arithmetic number, because the mean of its divisors is an integer number (89187840).

Almost surely, 2^1025123133 is an apocalyptic number.

It is an amenable number.

1025123133 is a deficient number, since it is larger than the sum of its proper divisors (401882307).

1025123133 is a wasteful number, since it uses less digits than its factorization.

1025123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7808.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1025123133 is about 32017.5441437972. The cubic root of 1025123133 is about 1008.3052101955.

Adding to 1025123133 its reverse (3313215201), we get a palindrome (4338338334).

The spelling of 1025123133 in words is "one billion, twenty-five million, one hundred twenty-three thousand, one hundred thirty-three".