149136801 has 16 divisors (see below), whose sum is σ = 229687488. Its totient is φ = 85068800.

The previous prime is 149136797. The next prime is 149136809. The reversal of 149136801 is 108631941.

It is a cyclic number.

It is not a de Polignac number, because 149136801 - 2² = 149136797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149136809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132360 + ... + 133481.

It is an arithmetic number, because the mean of its divisors is an integer number (14355468).

Almost surely, 2^149136801 is an apocalyptic number.

149136801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

149136801 is a deficient number, since it is larger than the sum of its proper divisors (80550687).

149136801 is a wasteful number, since it uses less digits than its factorization.

149136801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265872.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 149136801 is about 12212.1579174198. The cubic root of 149136801 is about 530.3081167943.

The spelling of 149136801 in words is "one hundred forty-nine million, one hundred thirty-six thousand, eight hundred one".