149720085 has 24 divisors (see below), whose sum is σ = 259799904. Its totient is φ = 79763040.

The previous prime is 149720083. The next prime is 149720101. The reversal of 149720085 is 580027941.

It is not a de Polignac number, because 149720085 - 2¹ = 149720083 is a prime.

It is a super-2 number, since 2×149720085² = 44832207704814450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149720083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76570 + ... + 78500.

It is an arithmetic number, because the mean of its divisors is an integer number (10824996).

Almost surely, 2^149720085 is an apocalyptic number.

149720085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149720085 is a deficient number, since it is larger than the sum of its proper divisors (110079819).

149720085 is a wasteful number, since it uses less digits than its factorization.

149720085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665 (or 3662 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 149720085 is about 12236.0158957072. The cubic root of 149720085 is about 530.9985742671.

The spelling of 149720085 in words is "one hundred forty-nine million, seven hundred twenty thousand, eighty-five".