149720179 has 16 divisors (see below), whose sum is σ = 180407808. Its totient is φ = 121473792.

The previous prime is 149720101. The next prime is 149720189. The reversal of 149720179 is 971027941.

149720179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149720179 is a prime.

It is a super-2 number, since 2×149720179² = 44832263999584082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149720189) 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, 10824 + ... + 20410.

It is an arithmetic number, because the mean of its divisors is an integer number (11275488).

Almost surely, 2^149720179 is an apocalyptic number.

149720179 is a deficient number, since it is larger than the sum of its proper divisors (30687629).

149720179 is an equidigital number, since it uses as much as digits as its factorization.

149720179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9714.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 149720179 is about 12236.0197368262. The cubic root of 149720179 is about 530.9986853941.

The spelling of 149720179 in words is "one hundred forty-nine million, seven hundred twenty thousand, one hundred seventy-nine".