1351531425 has 24 divisors (see below), whose sum is σ = 2236705056. Its totient is φ = 720115840.

The previous prime is 1351531411. The next prime is 1351531463. The reversal of 1351531425 is 5241351531.

It is not a de Polignac number, because 1351531425 - 2²⁵ = 1317976993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1351531392 and 1351531401.

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, 74062 + ... + 90488.

It is an arithmetic number, because the mean of its divisors is an integer number (93196044).

Almost surely, 2^1351531425 is an apocalyptic number.

1351531425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1351531425 is a deficient number, since it is larger than the sum of its proper divisors (885173631).

1351531425 is a wasteful number, since it uses less digits than its factorization.

1351531425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17537 (or 17532 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 1351531425 is about 36763.1802895234. The cubic root of 1351531425 is about 1105.6272041064.

Adding to 1351531425 its reverse (5241351531), we get a palindrome (6592882956).

The spelling of 1351531425 in words is "one billion, three hundred fifty-one million, five hundred thirty-one thousand, four hundred twenty-five".