149548442 has 8 divisors (see below), whose sum is σ = 224486100. Its totient is φ = 74719744.

The previous prime is 149548429. The next prime is 149548471. The reversal of 149548442 is 244845941.

It is a happy number.

It is a Cunningham number, because it is equal to 12229²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 149548441 + 1 = 12229^2 + 1^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 149548442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23717 + ... + 29352.

Almost surely, 2^149548442 is an apocalyptic number.

149548442 is a deficient number, since it is larger than the sum of its proper divisors (74937658).

149548442 is a wasteful number, since it uses less digits than its factorization.

149548442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54480.

The product of its digits is 184320, while the sum is 41.

The square root of 149548442 is about 12229.0000408864. Note that the first 4 decimals coincide. The cubic root of 149548442 is about 530.7955798153.

The spelling of 149548442 in words is "one hundred forty-nine million, five hundred forty-eight thousand, four hundred forty-two".