149643045427 has 2 divisors, whose sum is σ = 149643045428. Its totient is φ = 149643045426.

The previous prime is 149643045413. The next prime is 149643045451. The reversal of 149643045427 is 724540346941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149643045427 - 2¹¹ = 149643043379 is a prime.

It is a super-2 number, since 2×149643045427² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149643045407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74821522713 + 74821522714.

It is an arithmetic number, because the mean of its divisors is an integer number (74821522714).

Almost surely, 2^149643045427 is an apocalyptic number.

149643045427 is a deficient number, since it is larger than the sum of its proper divisors (1).

149643045427 is an equidigital number, since it uses as much as digits as its factorization.

149643045427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 149643045427 in words is "one hundred forty-nine billion, six hundred forty-three million, forty-five thousand, four hundred twenty-seven".