149801961 has 8 divisors (see below), whose sum is σ = 201309184. Its totient is φ = 99081360.

The previous prime is 149801957. The next prime is 149801963. The reversal of 149801961 is 169108941.

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

It is not a de Polignac number, because 149801961 - 2² = 149801957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149801963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196210 + ... + 196971.

It is an arithmetic number, because the mean of its divisors is an integer number (25163648).

Almost surely, 2^149801961 is an apocalyptic number.

It is an amenable number.

149801961 is a deficient number, since it is larger than the sum of its proper divisors (51507223).

149801961 is a wasteful number, since it uses less digits than its factorization.

149801961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393311.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 149801961 is about 12239.3611352881. The cubic root of 149801961 is about 531.0953506761.

The spelling of 149801961 in words is "one hundred forty-nine million, eight hundred one thousand, nine hundred sixty-one".