149955801 has 8 divisors (see below), whose sum is σ = 200889504. Its totient is φ = 99496320.

The previous prime is 149955787. The next prime is 149955823. The reversal of 149955801 is 108559941.

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

It is a de Polignac number, because none of the positive numbers 2^k-149955801 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (149555801) 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, 117816 + ... + 119081.

It is an arithmetic number, because the mean of its divisors is an integer number (25111188).

Almost surely, 2^149955801 is an apocalyptic number.

It is an amenable number.

149955801 is a deficient number, since it is larger than the sum of its proper divisors (50933703).

149955801 is a wasteful number, since it uses less digits than its factorization.

149955801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237111.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 149955801 is about 12245.6441643549. The cubic root of 149955801 is about 531.2770923023.

The spelling of 149955801 in words is "one hundred forty-nine million, nine hundred fifty-five thousand, eight hundred one".