149887743 has 8 divisors (see below), whose sum is σ = 201123888. Its totient is φ = 99288384.

The previous prime is 149887739. The next prime is 149887783. The reversal of 149887743 is 347788941.

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

It is not a de Polignac number, because 149887743 - 2² = 149887739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149887733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158646 + ... + 159587.

It is an arithmetic number, because the mean of its divisors is an integer number (25140486).

Almost surely, 2^149887743 is an apocalyptic number.

149887743 is a deficient number, since it is larger than the sum of its proper divisors (51236145).

149887743 is a wasteful number, since it uses less digits than its factorization.

149887743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318393.

The product of its digits is 1354752, while the sum is 51.

The square root of 149887743 is about 12242.8649833280. The cubic root of 149887743 is about 531.1967061094.

The spelling of 149887743 in words is "one hundred forty-nine million, eight hundred eighty-seven thousand, seven hundred forty-three".