16540351 has 2 divisors, whose sum is σ = 16540352. Its totient is φ = 16540350.

The previous prime is 16540339. The next prime is 16540361. The reversal of 16540351 is 15304561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16540351 - 2⁵ = 16540319 is a prime.

It is a super-2 number, since 2×16540351² = 547166422406402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16540301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270175 + 8270176.

It is an arithmetic number, because the mean of its divisors is an integer number (8270176).

Almost surely, 2^16540351 is an apocalyptic number.

16540351 is a deficient number, since it is larger than the sum of its proper divisors (1).

16540351 is an equidigital number, since it uses as much as digits as its factorization.

16540351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 16540351 is about 4066.9830341421. The cubic root of 16540351 is about 254.7895277248.

The spelling of 16540351 in words is "sixteen million, five hundred forty thousand, three hundred fifty-one".