149902443 has 6 divisors (see below), whose sum is σ = 216525764. Its totient is φ = 99934956.

The previous prime is 149902439. The next prime is 149902451. The reversal of 149902443 is 344209941.

It is not a de Polignac number, because 149902443 - 2² = 149902439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149902398 and 149902407.

It is not an unprimeable number, because it can be changed into a prime (149902463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8327905 + ... + 8327922.

Almost surely, 2^149902443 is an apocalyptic number.

149902443 is a deficient number, since it is larger than the sum of its proper divisors (66623321).

149902443 is a wasteful number, since it uses less digits than its factorization.

149902443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16655833 (or 16655830 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 149902443 is about 12243.4653182831. The cubic root of 149902443 is about 531.2140709634.

The spelling of 149902443 in words is "one hundred forty-nine million, nine hundred two thousand, four hundred forty-three".