7485139051 has 4 divisors (see below), whose sum is σ = 8060918992. Its totient is φ = 6909359112.

The previous prime is 7485139037. The next prime is 7485139061. The reversal of 7485139051 is 1509315847.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7485139051 - 2⁷ = 7485138923 is a prime.

It is a super-2 number, since 2×7485139051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7485138989 and 7485139007.

It is not an unprimeable number, because it can be changed into a prime (7485139061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287889951 + ... + 287889976.

It is an arithmetic number, because the mean of its divisors is an integer number (2015229748).

Almost surely, 2^7485139051 is an apocalyptic number.

7485139051 is a deficient number, since it is larger than the sum of its proper divisors (575779941).

7485139051 is a wasteful number, since it uses less digits than its factorization.

7485139051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575779940.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 7485139051 is about 86516.6981050479. The cubic root of 7485139051 is about 1956.1401068748.

The spelling of 7485139051 in words is "seven billion, four hundred eighty-five million, one hundred thirty-nine thousand, fifty-one".