7149851903 has 4 divisors (see below), whose sum is σ = 7152463128. Its totient is φ = 7147240680.

The previous prime is 7149851851. The next prime is 7149851911. The reversal of 7149851903 is 3091589417.

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 7149851903 - 2⁸ = 7149851647 is a prime.

It is a super-2 number, since 2×7149851903² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7149857903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301501 + ... + 1306982.

It is an arithmetic number, because the mean of its divisors is an integer number (1788115782).

Almost surely, 2^7149851903 is an apocalyptic number.

7149851903 is a deficient number, since it is larger than the sum of its proper divisors (2611225).

7149851903 is a wasteful number, since it uses less digits than its factorization.

7149851903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611224.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 7149851903 is about 84556.7969059850. The cubic root of 7149851903 is about 1926.4852227563.

The spelling of 7149851903 in words is "seven billion, one hundred forty-nine million, eight hundred fifty-one thousand, nine hundred three".