149088749 has 4 divisors (see below), whose sum is σ = 149981664. Its totient is φ = 148195836.

The previous prime is 149088733. The next prime is 149088787. The reversal of 149088749 is 947880941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149088749 - 2⁴ = 149088733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149088697 and 149088706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149078749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446207 + ... + 446540.

It is an arithmetic number, because the mean of its divisors is an integer number (37495416).

Almost surely, 2^149088749 is an apocalyptic number.

It is an amenable number.

149088749 is a deficient number, since it is larger than the sum of its proper divisors (892915).

149088749 is an equidigital number, since it uses as much as digits as its factorization.

149088749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892914.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 149088749 is about 12210.1903752562. The cubic root of 149088749 is about 530.2511554390.

The spelling of 149088749 in words is "one hundred forty-nine million, eighty-eight thousand, seven hundred forty-nine".