149001481 has 8 divisors (see below), whose sum is σ = 158328864. Its totient is φ = 139736640.

The previous prime is 149001473. The next prime is 149001499. The reversal of 149001481 is 184100941.

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

It is a cyclic number.

It is not a de Polignac number, because 149001481 - 2³ = 149001473 is a prime.

It is a super-2 number, since 2×149001481² = 44402882680386722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149001451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10675 + ... + 20296.

It is an arithmetic number, because the mean of its divisors is an integer number (19791108).

Almost surely, 2^149001481 is an apocalyptic number.

It is an amenable number.

149001481 is a deficient number, since it is larger than the sum of its proper divisors (9327383).

149001481 is a wasteful number, since it uses less digits than its factorization.

149001481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31271.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 149001481 is about 12206.6162797067. The cubic root of 149001481 is about 530.1476757113.

The spelling of 149001481 in words is "one hundred forty-nine million, one thousand, four hundred eighty-one".