149801990293 has 8 divisors (see below), whose sum is σ = 150360820280. Its totient is φ = 149243290560.

The previous prime is 149801990279. The next prime is 149801990297. The reversal of 149801990293 is 392099108941.

It can be written as a sum of positive squares in 4 ways, for example, as 16666035409 + 133135954884 = 129097^2 + 364878^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149801990293 - 2¹³ = 149801982101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149801990297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2695123 + ... + 2750143.

It is an arithmetic number, because the mean of its divisors is an integer number (18795102535).

Almost surely, 2^149801990293 is an apocalyptic number.

It is an amenable number.

149801990293 is a deficient number, since it is larger than the sum of its proper divisors (558829987).

149801990293 is an equidigital number, since it uses as much as digits as its factorization.

149801990293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65127.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 149801990293 in words is "one hundred forty-nine billion, eight hundred one million, nine hundred ninety thousand, two hundred ninety-three".