9942154525 has 12 divisors (see below), whose sum is σ = 12406800532. Its totient is φ = 7903059840.

The previous prime is 9942154517. The next prime is 9942154531. The reversal of 9942154525 is 5254512499.

It can be written as a sum of positive squares in 6 ways, for example, as 2106718201 + 7835436324 = 45899^2 + 88518^2 .

It is not a de Polignac number, because 9942154525 - 2³ = 9942154517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1262592 + ... + 1270441.

Almost surely, 2^9942154525 is an apocalyptic number.

It is an amenable number.

9942154525 is a deficient number, since it is larger than the sum of its proper divisors (2464646007).

9942154525 is a wasteful number, since it uses less digits than its factorization.

9942154525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533200 (or 2533195 counting only the distinct ones).

The product of its digits is 648000, while the sum is 46.

The square root of 9942154525 is about 99710.3531485071. The cubic root of 9942154525 is about 2150.2725109781.

The spelling of 9942154525 in words is "nine billion, nine hundred forty-two million, one hundred fifty-four thousand, five hundred twenty-five".