149578967 has 2 divisors, whose sum is σ = 149578968. Its totient is φ = 149578966.

The previous prime is 149578951. The next prime is 149578987. The reversal of 149578967 is 769875941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149578967 - 2⁴ = 149578951 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149578987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74789483 + 74789484.

It is an arithmetic number, because the mean of its divisors is an integer number (74789484).

Almost surely, 2^149578967 is an apocalyptic number.

149578967 is a deficient number, since it is larger than the sum of its proper divisors (1).

149578967 is an equidigital number, since it uses as much as digits as its factorization.

149578967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 56.

The square root of 149578967 is about 12230.2480350972. The cubic root of 149578967 is about 530.8316917101.

The spelling of 149578967 in words is "one hundred forty-nine million, five hundred seventy-eight thousand, nine hundred sixty-seven".