149646453 has 8 divisors (see below), whose sum is σ = 217667616. Its totient is φ = 90694800.

The previous prime is 149646439. The next prime is 149646473. The reversal of 149646453 is 354646941.

It is a happy number.

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

It is not a de Polignac number, because 149646453 - 2⁵ = 149646421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149646403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2267338 + ... + 2267403.

It is an arithmetic number, because the mean of its divisors is an integer number (27208452).

Almost surely, 2^149646453 is an apocalyptic number.

It is an amenable number.

149646453 is a deficient number, since it is larger than the sum of its proper divisors (68021163).

149646453 is a wasteful number, since it uses less digits than its factorization.

149646453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534755.

The product of its digits is 311040, while the sum is 42.

The square root of 149646453 is about 12233.0067031781. The cubic root of 149646453 is about 530.9115120263.

The spelling of 149646453 in words is "one hundred forty-nine million, six hundred forty-six thousand, four hundred fifty-three".