149951853 has 6 divisors (see below), whose sum is σ = 216597134. Its totient is φ = 99967896.

The previous prime is 149951827. The next prime is 149951899. The reversal of 149951853 is 358159941.

It can be written as a sum of positive squares in only one way, i.e., 87272964 + 62678889 = 9342^2 + 7917^2 .

It is not a de Polignac number, because 149951853 - 2⁹ = 149951341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149951799 and 149951808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149951353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8330650 + ... + 8330667.

Almost surely, 2^149951853 is an apocalyptic number.

It is an amenable number.

149951853 is a deficient number, since it is larger than the sum of its proper divisors (66645281).

149951853 is a wasteful number, since it uses less digits than its factorization.

149951853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16661323 (or 16661320 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 149951853 is about 12245.4829631175. The cubic root of 149951853 is about 531.2724298165.

The spelling of 149951853 in words is "one hundred forty-nine million, nine hundred fifty-one thousand, eight hundred fifty-three".