149385951 has 56 divisors (see below), whose sum is σ = 263316816. Its totient is φ = 83514240.

The previous prime is 149385949. The next prime is 149385967. The reversal of 149385951 is 159583941.

It is not a de Polignac number, because 149385951 - 2¹ = 149385949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149385897 and 149385906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149385151) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 103531 + ... + 104963.

It is an arithmetic number, because the mean of its divisors is an integer number (4702086).

Almost surely, 2^149385951 is an apocalyptic number.

149385951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149385951 is a deficient number, since it is larger than the sum of its proper divisors (113930865).

149385951 is a wasteful number, since it uses less digits than its factorization.

149385951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1460 counting only the distinct ones).

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

The square root of 149385951 is about 12222.3545603947. The cubic root of 149385951 is about 530.6032658505.

The spelling of 149385951 in words is "one hundred forty-nine million, three hundred eighty-five thousand, nine hundred fifty-one".