149019081 has 16 divisors (see below), whose sum is σ = 206492160. Its totient is φ = 95477760.

The previous prime is 149019053. The next prime is 149019097. The reversal of 149019081 is 180910941.

149019081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149019081 - 2⁵ = 149019049 is a prime.

It is a super-2 number, since 2×149019081² = 44413373004169122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149019581) 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, 15561 + ... + 23241.

It is an arithmetic number, because the mean of its divisors is an integer number (12905760).

Almost surely, 2^149019081 is an apocalyptic number.

It is an amenable number.

149019081 is a deficient number, since it is larger than the sum of its proper divisors (57473079).

149019081 is a wasteful number, since it uses less digits than its factorization.

149019081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 149019081 is about 12207.3371789265. The cubic root of 149019081 is about 530.1685485054.

The spelling of 149019081 in words is "one hundred forty-nine million, nineteen thousand, eighty-one".