7457122149 has 8 divisors (see below), whose sum is σ = 9951210720. Its totient is φ = 4967224176.

The previous prime is 7457122133. The next prime is 7457122157. The reversal of 7457122149 is 9412217547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7457122149 - 2⁴ = 7457122133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7457122149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7457122249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1043494 + ... + 1050615.

It is an arithmetic number, because the mean of its divisors is an integer number (1243901340).

Almost surely, 2^7457122149 is an apocalyptic number.

It is an amenable number.

7457122149 is a deficient number, since it is larger than the sum of its proper divisors (2494088571).

7457122149 is a wasteful number, since it uses less digits than its factorization.

7457122149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095299.

The product of its digits is 141120, while the sum is 42.

The square root of 7457122149 is about 86354.6301538024. The cubic root of 7457122149 is about 1953.6964423345.

The spelling of 7457122149 in words is "seven billion, four hundred fifty-seven million, one hundred twenty-two thousand, one hundred forty-nine".