149941599 has 16 divisors (see below), whose sum is σ = 205091040. Its totient is φ = 97407360.

The previous prime is 149941591. The next prime is 149941613. The reversal of 149941599 is 995149941.

It is a happy number.

It is not a de Polignac number, because 149941599 - 2³ = 149941591 is a prime.

It is a super-2 number, since 2×149941599² = 44964966221353602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149941591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16189 + ... + 23705.

It is an arithmetic number, because the mean of its divisors is an integer number (12818190).

Almost surely, 2^149941599 is an apocalyptic number.

149941599 is a deficient number, since it is larger than the sum of its proper divisors (55149441).

149941599 is a wasteful number, since it uses less digits than its factorization.

149941599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690.

The product of its digits is 524880, while the sum is 51.

The square root of 149941599 is about 12245.0642709624. The cubic root of 149941599 is about 531.2603197257.

The spelling of 149941599 in words is "one hundred forty-nine million, nine hundred forty-one thousand, five hundred ninety-nine".