149677903 has 12 divisors (see below), whose sum is σ = 157013640. Its totient is φ = 142514736.

The previous prime is 149677901. The next prime is 149677909. The reversal of 149677903 is 309776941.

It is not a de Polignac number, because 149677903 - 2¹ = 149677901 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 (149677901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180576 + ... + 181402.

It is an arithmetic number, because the mean of its divisors is an integer number (13084470).

Almost surely, 2^149677903 is an apocalyptic number.

149677903 is a deficient number, since it is larger than the sum of its proper divisors (7335737).

149677903 is an frugal number, since it uses more digits than its factorization.

149677903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 149677903 is about 12234.2920923117. The cubic root of 149677903 is about 530.9487018987.

The spelling of 149677903 in words is "one hundred forty-nine million, six hundred seventy-seven thousand, nine hundred three".