149378807 has 2 divisors, whose sum is σ = 149378808. Its totient is φ = 149378806.

The previous prime is 149378777. The next prime is 149378837. The reversal of 149378807 is 708873941.

It is a balanced prime because it is at equal distance from previous prime (149378777) and next prime (149378837).

It is a cyclic number.

It is not a de Polignac number, because 149378807 - 2⁶ = 149378743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149378837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74689403 + 74689404.

It is an arithmetic number, because the mean of its divisors is an integer number (74689404).

Almost surely, 2^149378807 is an apocalyptic number.

149378807 is a deficient number, since it is larger than the sum of its proper divisors (1).

149378807 is an equidigital number, since it uses as much as digits as its factorization.

149378807 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 47.

The square root of 149378807 is about 12222.0623055195. The cubic root of 149378807 is about 530.5948074689.

The spelling of 149378807 in words is "one hundred forty-nine million, three hundred seventy-eight thousand, eight hundred seven".