149743487 has 4 divisors (see below), whose sum is σ = 149801280. Its totient is φ = 149685696.

The previous prime is 149743483. The next prime is 149743511. The reversal of 149743487 is 784347941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149743487 - 2² = 149743483 is a prime.

It is a super-2 number, since 2×149743487² = 44846223797838338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149743483) 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 3 ways as a sum of consecutive naturals, for example, 24818 + ... + 30255.

It is an arithmetic number, because the mean of its divisors is an integer number (37450320).

Almost surely, 2^149743487 is an apocalyptic number.

149743487 is a deficient number, since it is larger than the sum of its proper divisors (57793).

149743487 is an equidigital number, since it uses as much as digits as its factorization.

149743487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57792.

The product of its digits is 677376, while the sum is 47.

The square root of 149743487 is about 12236.9721336612. The cubic root of 149743487 is about 531.0262387390.

The spelling of 149743487 in words is "one hundred forty-nine million, seven hundred forty-three thousand, four hundred eighty-seven".