149700993 has 16 divisors (see below), whose sum is σ = 216283200. Its totient is φ = 91554624.

The previous prime is 149700989. The next prime is 149701003. The reversal of 149700993 is 399007941.

It is not a de Polignac number, because 149700993 - 2² = 149700989 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149700983) 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, 5418 + ... + 18131.

It is an arithmetic number, because the mean of its divisors is an integer number (13517700).

Almost surely, 2^149700993 is an apocalyptic number.

149700993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

149700993 is a deficient number, since it is larger than the sum of its proper divisors (66582207).

149700993 is a wasteful number, since it uses less digits than its factorization.

149700993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23728.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 149700993 is about 12235.2357149341. The cubic root of 149700993 is about 530.9760026891.

The spelling of 149700993 in words is "one hundred forty-nine million, seven hundred thousand, nine hundred ninety-three".