149570699 has 4 divisors (see below), whose sum is σ = 150968664. Its totient is φ = 148172736.

The previous prime is 149570677. The next prime is 149570737. The reversal of 149570699 is 996075941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996075941 = 7 ⋅142296563.

It is a cyclic number.

It is not a de Polignac number, because 149570699 - 2²⁰ = 148522123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149570609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698822 + ... + 699035.

It is an arithmetic number, because the mean of its divisors is an integer number (37742166).

Almost surely, 2^149570699 is an apocalyptic number.

149570699 is a deficient number, since it is larger than the sum of its proper divisors (1397965).

149570699 is a wasteful number, since it uses less digits than its factorization.

149570699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397964.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 149570699 is about 12229.9100160222. The cubic root of 149570699 is about 530.8219109292.

The spelling of 149570699 in words is "one hundred forty-nine million, five hundred seventy thousand, six hundred ninety-nine".