1301531025 has 24 divisors (see below), whose sum is σ = 2153549664. Its totient is φ = 693606400.

The previous prime is 1301530961. The next prime is 1301531029. The reversal of 1301531025 is 5201351031.

It is not a de Polignac number, because 1301531025 - 2⁶ = 1301530961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301530992 and 1301531010.

It is not an unprimeable number, because it can be changed into a prime (1301531029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100945 + ... + 113105.

It is an arithmetic number, because the mean of its divisors is an integer number (89731236).

Almost surely, 2^1301531025 is an apocalyptic number.

1301531025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1301531025 is a deficient number, since it is larger than the sum of its proper divisors (852018639).

1301531025 is a wasteful number, since it uses less digits than its factorization.

1301531025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13601 (or 13596 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1301531025 is about 36076.7380038717. The cubic root of 1301531025 is about 1091.8211636385.

Adding to 1301531025 its reverse (5201351031), we get a palindrome (6502882056).

The spelling of 1301531025 in words is "one billion, three hundred one million, five hundred thirty-one thousand, twenty-five".