7149899 has 2 divisors, whose sum is σ = 7149900. Its totient is φ = 7149898.

The previous prime is 7149851. The next prime is 7149907. The reversal of 7149899 is 9989417.

It is a strong prime.

It is an emirp because it is prime and its reverse (9989417) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7149899 is a prime.

It is a super-2 number, since 2×7149899² = 102242111420402, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 7³ + 1 + 4⁹ + 9³ + 8⁷ + 9⁴ + 9⁷ .

It is not a weakly prime, because it can be changed into another prime (7149829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574949 + 3574950.

It is an arithmetic number, because the mean of its divisors is an integer number (3574950).

Almost surely, 2^7149899 is an apocalyptic number.

7149899 is a deficient number, since it is larger than the sum of its proper divisors (1).

7149899 is an equidigital number, since it uses as much as digits as its factorization.

7149899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 47.

The square root of 7149899 is about 2673.9295054283. The cubic root of 7149899 is about 192.6489452749.

The spelling of 7149899 in words is "seven million, one hundred forty-nine thousand, eight hundred ninety-nine".