149651387 has 8 divisors (see below), whose sum is σ = 152869200. Its totient is φ = 146465280.

The previous prime is 149651321. The next prime is 149651393. The reversal of 149651387 is 783156941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149651387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149651287) 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, 1739 + ... + 17387.

It is an arithmetic number, because the mean of its divisors is an integer number (19108650).

Almost surely, 2^149651387 is an apocalyptic number.

149651387 is a deficient number, since it is larger than the sum of its proper divisors (3217813).

149651387 is a wasteful number, since it uses less digits than its factorization.

149651387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15853.

The product of its digits is 181440, while the sum is 44.

The square root of 149651387 is about 12233.2083690257. The cubic root of 149651387 is about 530.9173468647.

The spelling of 149651387 in words is "one hundred forty-nine million, six hundred fifty-one thousand, three hundred eighty-seven".