149647807 has 2 divisors, whose sum is σ = 149647808. Its totient is φ = 149647806.

The previous prime is 149647793. The next prime is 149647829. The reversal of 149647807 is 708746941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149647807 - 2¹¹ = 149645759 is a prime.

It is a super-2 number, since 2×149647807² = 44788932279818498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149647877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74823903 + 74823904.

It is an arithmetic number, because the mean of its divisors is an integer number (74823904).

Almost surely, 2^149647807 is an apocalyptic number.

149647807 is a deficient number, since it is larger than the sum of its proper divisors (1).

149647807 is an equidigital number, since it uses as much as digits as its factorization.

149647807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 149647807 is about 12233.0620451300. The cubic root of 149647807 is about 530.9131132492.

The spelling of 149647807 in words is "one hundred forty-nine million, six hundred forty-seven thousand, eight hundred seven".