7293138425 has 24 divisors (see below), whose sum is σ = 9666881280. Its totient is φ = 5444700800.

The previous prime is 7293138421. The next prime is 7293138439. The reversal of 7293138425 is 5248313927.

It is a happy number.

It is not a de Polignac number, because 7293138425 - 2² = 7293138421 is a prime.

It is a super-2 number, since 2×7293138425² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7293138421) 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, 131105 + ... + 178254.

It is an arithmetic number, because the mean of its divisors is an integer number (402786720).

Almost surely, 2^7293138425 is an apocalyptic number.

It is an amenable number.

7293138425 is a deficient number, since it is larger than the sum of its proper divisors (2373742855).

7293138425 is a wasteful number, since it uses less digits than its factorization.

7293138425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309433 (or 309428 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 7293138425 is about 85399.8736825764. The cubic root of 7293138425 is about 1939.2694334410.

The spelling of 7293138425 in words is "seven billion, two hundred ninety-three million, one hundred thirty-eight thousand, four hundred twenty-five".