1509142425 has 36 divisors (see below), whose sum is σ = 2902488336. Its totient is φ = 689892000.

The previous prime is 1509142409. The next prime is 1509142429. The reversal of 1509142425 is 5242419051.

It is not a de Polignac number, because 1509142425 - 2⁴ = 1509142409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1509142429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 201651 + ... + 209000.

It is an arithmetic number, because the mean of its divisors is an integer number (80624676).

Almost surely, 2^1509142425 is an apocalyptic number.

1509142425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1509142425 is a deficient number, since it is larger than the sum of its proper divisors (1393345911).

1509142425 is a wasteful number, since it uses less digits than its factorization.

1509142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410678 (or 410666 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 1509142425 is about 38847.6823633019. The cubic root of 1509142425 is about 1147.0351922540.

The spelling of 1509142425 in words is "one billion, five hundred nine million, one hundred forty-two thousand, four hundred twenty-five".